annotate runtime/doc/if_pyth.txt @ 7228:873eae260c97

commit https://github.com/vim/vim/commit/b4ff518d95aa57c2f8c0568c915035bef849581b Author: Bram Moolenaar <Bram@vim.org> Date: Tue Nov 10 21:15:48 2015 +0100 Updated runtime files.
author Christian Brabandt <cb@256bit.org>
date Tue, 10 Nov 2015 21:30:05 +0100
parents 42717d048817
children ed7251c3e2d3
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1 *if_pyth.txt* For Vim version 7.4. Last change: 2015 Nov 10
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4 VIM REFERENCE MANUAL by Paul Moore
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5
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6
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7 The Python Interface to Vim *python* *Python*
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8
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9 1. Commands |python-commands|
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10 2. The vim module |python-vim|
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11 3. Buffer objects |python-buffer|
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12 4. Range objects |python-range|
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13 5. Window objects |python-window|
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14 6. Tab page objects |python-tabpage|
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15 7. vim.bindeval objects |python-bindeval-objects|
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16 8. pyeval(), py3eval() Vim functions |python-pyeval|
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17 9. Dynamic loading |python-dynamic|
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18 10. Python 3 |python3|
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20 {Vi does not have any of these commands}
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21
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22 The Python 2.x interface is available only when Vim was compiled with the
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23 |+python| feature.
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24 The Python 3 interface is available only when Vim was compiled with the
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25 |+python3| feature.
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26 Both can be available at the same time, but read |python-2-and-3|.
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28 ==============================================================================
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29 1. Commands *python-commands*
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31 *:python* *:py* *E263* *E264* *E887*
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32 :[range]py[thon] {stmt}
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33 Execute Python statement {stmt}. A simple check if
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34 the `:python` command is working: >
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35 :python print "Hello"
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36
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37 :[range]py[thon] << {endmarker}
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38 {script}
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39 {endmarker}
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40 Execute Python script {script}.
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41 Note: This command doesn't work when the Python
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42 feature wasn't compiled in. To avoid errors, see
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43 |script-here|.
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44
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45 {endmarker} must NOT be preceded by any white space. If {endmarker} is
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46 omitted from after the "<<", a dot '.' must be used after {script}, like
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47 for the |:append| and |:insert| commands.
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48 This form of the |:python| command is mainly useful for including python code
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49 in Vim scripts.
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50
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51 Example: >
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52 function! IcecreamInitialize()
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53 python << EOF
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54 class StrawberryIcecream:
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55 def __call__(self):
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56 print 'EAT ME'
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57 EOF
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58 endfunction
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59 <
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60 Note: Python is very sensitive to the indenting. Make sure the "class" line
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61 and "EOF" do not have any indent.
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63 *:pydo*
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64 :[range]pydo {body} Execute Python function "def _vim_pydo(line, linenr):
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65 {body}" for each line in the [range], with the
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66 function arguments being set to the text of each line
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67 in turn, without a trailing <EOL>, and the current
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68 line number. The function should return a string or
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69 None. If a string is returned, it becomes the text of
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70 the line in the current turn. The default for [range]
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71 is the whole file: "1,$".
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72 {not in Vi}
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73
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74 Examples:
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75 >
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76 :pydo return "%s\t%d" % (line[::-1], len(line))
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77 :pydo if line: return "%4d: %s" % (linenr, line)
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78 <
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79 *:pyfile* *:pyf*
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80 :[range]pyf[ile] {file}
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81 Execute the Python script in {file}. The whole
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82 argument is used as a single file name. {not in Vi}
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83
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84 Both of these commands do essentially the same thing - they execute a piece of
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85 Python code, with the "current range" |python-range| set to the given line
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86 range.
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87
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88 In the case of :python, the code to execute is in the command-line.
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89 In the case of :pyfile, the code to execute is the contents of the given file.
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90
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91 Python commands cannot be used in the |sandbox|.
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92
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93 To pass arguments you need to set sys.argv[] explicitly. Example: >
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94
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95 :python import sys
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96 :python sys.argv = ["foo", "bar"]
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97 :pyfile myscript.py
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98
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99 Here are some examples *python-examples* >
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100
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101 :python from vim import *
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102 :python from string import upper
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103 :python current.line = upper(current.line)
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104 :python print "Hello"
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105 :python str = current.buffer[42]
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106
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107 (Note that changes - like the imports - persist from one command to the next,
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108 just like in the Python interpreter.)
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109
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110 ==============================================================================
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111 2. The vim module *python-vim*
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112
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113 Python code gets all of its access to vim (with one exception - see
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114 |python-output| below) via the "vim" module. The vim module implements two
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115 methods, three constants, and one error object. You need to import the vim
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116 module before using it: >
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117 :python import vim
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118
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119 Overview >
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120 :py print "Hello" # displays a message
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121 :py vim.command(cmd) # execute an Ex command
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122 :py w = vim.windows[n] # gets window "n"
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123 :py cw = vim.current.window # gets the current window
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124 :py b = vim.buffers[n] # gets buffer "n"
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125 :py cb = vim.current.buffer # gets the current buffer
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126 :py w.height = lines # sets the window height
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127 :py w.cursor = (row, col) # sets the window cursor position
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128 :py pos = w.cursor # gets a tuple (row, col)
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129 :py name = b.name # gets the buffer file name
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130 :py line = b[n] # gets a line from the buffer
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131 :py lines = b[n:m] # gets a list of lines
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132 :py num = len(b) # gets the number of lines
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133 :py b[n] = str # sets a line in the buffer
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134 :py b[n:m] = [str1, str2, str3] # sets a number of lines at once
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135 :py del b[n] # deletes a line
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136 :py del b[n:m] # deletes a number of lines
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138
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139 Methods of the "vim" module
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140
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141 vim.command(str) *python-command*
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142 Executes the vim (ex-mode) command str. Returns None.
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143 Examples: >
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144 :py vim.command("set tw=72")
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145 :py vim.command("%s/aaa/bbb/g")
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146 < The following definition executes Normal mode commands: >
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147 def normal(str):
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148 vim.command("normal "+str)
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149 # Note the use of single quotes to delimit a string containing
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150 # double quotes
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151 normal('"a2dd"aP')
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152 < *E659*
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153 The ":python" command cannot be used recursively with Python 2.2 and
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154 older. This only works with Python 2.3 and later: >
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155 :py vim.command("python print 'Hello again Python'")
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156
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157 vim.eval(str) *python-eval*
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158 Evaluates the expression str using the vim internal expression
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159 evaluator (see |expression|). Returns the expression result as:
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160 - a string if the Vim expression evaluates to a string or number
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161 - a list if the Vim expression evaluates to a Vim list
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162 - a dictionary if the Vim expression evaluates to a Vim dictionary
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163 Dictionaries and lists are recursively expanded.
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164 Examples: >
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165 :py text_width = vim.eval("&tw")
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166 :py str = vim.eval("12+12") # NB result is a string! Use
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167 # string.atoi() to convert to
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168 # a number.
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169
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170 :py tagList = vim.eval('taglist("eval_expr")')
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171 < The latter will return a python list of python dicts, for instance:
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172 [{'cmd': '/^eval_expr(arg, nextcmd)$/', 'static': 0, 'name':
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173 'eval_expr', 'kind': 'f', 'filename': './src/eval.c'}]
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174
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175 vim.bindeval(str) *python-bindeval*
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176 Like |python-eval|, but returns special objects described in
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177 |python-bindeval-objects|. These python objects let you modify (|List|
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178 or |Dictionary|) or call (|Funcref|) vim objects.
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179
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180 vim.strwidth(str) *python-strwidth*
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181 Like |strwidth()|: returns number of display cells str occupies, tab
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182 is counted as one cell.
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183
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184 vim.foreach_rtp(callable) *python-foreach_rtp*
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185 Call the given callable for each path in 'runtimepath' until either
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186 callable returns something but None, the exception is raised or there
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187 are no longer paths. If stopped in case callable returned non-None,
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188 vim.foreach_rtp function returns the value returned by callable.
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189
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190 vim.chdir(*args, **kwargs) *python-chdir*
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191 vim.fchdir(*args, **kwargs) *python-fchdir*
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192 Run os.chdir or os.fchdir, then all appropriate vim stuff.
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193 Note: you should not use these functions directly, use os.chdir and
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194 os.fchdir instead. Behavior of vim.fchdir is undefined in case
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195 os.fchdir does not exist.
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196
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197 Error object of the "vim" module
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198
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199 vim.error *python-error*
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200 Upon encountering a Vim error, Python raises an exception of type
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201 vim.error.
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202 Example: >
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203 try:
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204 vim.command("put a")
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205 except vim.error:
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206 # nothing in register a
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207
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208 Constants of the "vim" module
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209
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210 Note that these are not actually constants - you could reassign them.
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211 But this is silly, as you would then lose access to the vim objects
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212 to which the variables referred.
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213
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214 vim.buffers *python-buffers*
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215 A mapping object providing access to the list of vim buffers. The
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216 object supports the following operations: >
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217 :py b = vim.buffers[i] # Indexing (read-only)
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218 :py b in vim.buffers # Membership test
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219 :py n = len(vim.buffers) # Number of elements
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220 :py for b in vim.buffers: # Iterating over buffer list
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221 <
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222 vim.windows *python-windows*
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223 A sequence object providing access to the list of vim windows. The
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224 object supports the following operations: >
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225 :py w = vim.windows[i] # Indexing (read-only)
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226 :py w in vim.windows # Membership test
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227 :py n = len(vim.windows) # Number of elements
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228 :py for w in vim.windows: # Sequential access
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229 < Note: vim.windows object always accesses current tab page.
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230 |python-tabpage|.windows objects are bound to parent |python-tabpage|
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231 object and always use windows from that tab page (or throw vim.error
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232 in case tab page was deleted). You can keep a reference to both
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233 without keeping a reference to vim module object or |python-tabpage|,
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234 they will not lose their properties in this case.
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235
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236 vim.tabpages *python-tabpages*
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237 A sequence object providing access to the list of vim tab pages. The
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238 object supports the following operations: >
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239 :py t = vim.tabpages[i] # Indexing (read-only)
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240 :py t in vim.tabpages # Membership test
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241 :py n = len(vim.tabpages) # Number of elements
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242 :py for t in vim.tabpages: # Sequential access
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243 <
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244 vim.current *python-current*
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245 An object providing access (via specific attributes) to various
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246 "current" objects available in vim:
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247 vim.current.line The current line (RW) String
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248 vim.current.buffer The current buffer (RW) Buffer
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249 vim.current.window The current window (RW) Window
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250 vim.current.tabpage The current tab page (RW) TabPage
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251 vim.current.range The current line range (RO) Range
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252
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253 The last case deserves a little explanation. When the :python or
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254 :pyfile command specifies a range, this range of lines becomes the
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255 "current range". A range is a bit like a buffer, but with all access
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256 restricted to a subset of lines. See |python-range| for more details.
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257
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258 Note: When assigning to vim.current.{buffer,window,tabpage} it expects
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259 valid |python-buffer|, |python-window| or |python-tabpage| objects
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260 respectively. Assigning triggers normal (with |autocommand|s)
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261 switching to given buffer, window or tab page. It is the only way to
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262 switch UI objects in python: you can't assign to
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263 |python-tabpage|.window attribute. To switch without triggering
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264 autocommands use >
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265 py << EOF
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266 saved_eventignore = vim.options['eventignore']
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267 vim.options['eventignore'] = 'all'
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268 try:
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269 vim.current.buffer = vim.buffers[2] # Switch to buffer 2
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270 finally:
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271 vim.options['eventignore'] = saved_eventignore
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272 EOF
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273 <
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274 vim.vars *python-vars*
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275 vim.vvars *python-vvars*
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276 Dictionary-like objects holding dictionaries with global (|g:|) and
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277 vim (|v:|) variables respectively. Identical to `vim.bindeval("g:")`,
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278 but faster.
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279
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280 vim.options *python-options*
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281 Object partly supporting mapping protocol (supports setting and
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282 getting items) providing a read-write access to global options.
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283 Note: unlike |:set| this provides access only to global options. You
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284 cannot use this object to obtain or set local options' values or
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285 access local-only options in any fashion. Raises KeyError if no global
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286 option with such name exists (i.e. does not raise KeyError for
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287 |global-local| options and global only options, but does for window-
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288 and buffer-local ones). Use |python-buffer| objects to access to
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289 buffer-local options and |python-window| objects to access to
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290 window-local options.
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291
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292 Type of this object is available via "Options" attribute of vim
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293 module.
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294
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295 Output from Python *python-output*
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296 Vim displays all Python code output in the Vim message area. Normal
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297 output appears as information messages, and error output appears as
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298 error messages.
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299
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300 In implementation terms, this means that all output to sys.stdout
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301 (including the output from print statements) appears as information
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302 messages, and all output to sys.stderr (including error tracebacks)
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303 appears as error messages.
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304
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305 *python-input*
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306 Input (via sys.stdin, including input() and raw_input()) is not
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307 supported, and may cause the program to crash. This should probably be
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308 fixed.
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309
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310 *python2-directory* *python3-directory* *pythonx-directory*
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311 Python 'runtimepath' handling *python-special-path*
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312
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313 In python vim.VIM_SPECIAL_PATH special directory is used as a replacement for
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314 the list of paths found in 'runtimepath': with this directory in sys.path and
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315 vim.path_hooks in sys.path_hooks python will try to load module from
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316 {rtp}/python2 (or python3) and {rtp}/pythonx (for both python versions) for
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317 each {rtp} found in 'runtimepath'.
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318
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319 Implementation is similar to the following, but written in C: >
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320
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321 from imp import find_module, load_module
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322 import vim
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323 import sys
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324
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325 class VimModuleLoader(object):
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326 def __init__(self, module):
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327 self.module = module
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328
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329 def load_module(self, fullname, path=None):
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330 return self.module
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331
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332 def _find_module(fullname, oldtail, path):
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333 idx = oldtail.find('.')
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334 if idx > 0:
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335 name = oldtail[:idx]
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336 tail = oldtail[idx+1:]
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337 fmr = find_module(name, path)
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338 module = load_module(fullname[:-len(oldtail)] + name, *fmr)
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339 return _find_module(fullname, tail, module.__path__)
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340 else:
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341 fmr = find_module(fullname, path)
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342 return load_module(fullname, *fmr)
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343
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344 # It uses vim module itself in place of VimPathFinder class: it does not
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345 # matter for python which object has find_module function attached to as
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346 # an attribute.
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347 class VimPathFinder(object):
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348 @classmethod
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349 def find_module(cls, fullname, path=None):
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350 try:
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351 return VimModuleLoader(_find_module(fullname, fullname, path or vim._get_paths()))
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352 except ImportError:
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353 return None
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354
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355 @classmethod
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356 def load_module(cls, fullname, path=None):
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357 return _find_module(fullname, fullname, path or vim._get_paths())
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358
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359 def hook(path):
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360 if path == vim.VIM_SPECIAL_PATH:
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361 return VimPathFinder
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362 else:
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363 raise ImportError
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364
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365 sys.path_hooks.append(hook)
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366
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367 vim.VIM_SPECIAL_PATH *python-VIM_SPECIAL_PATH*
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368 String constant used in conjunction with vim path hook. If path hook
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369 installed by vim is requested to handle anything but path equal to
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370 vim.VIM_SPECIAL_PATH constant it raises ImportError. In the only other
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371 case it uses special loader.
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372
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373 Note: you must not use value of this constant directly, always use
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374 vim.VIM_SPECIAL_PATH object.
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375
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376 vim.find_module(...) *python-find_module*
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377 vim.path_hook(path) *python-path_hook*
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378 Methods or objects used to implement path loading as described above.
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379 You should not be using any of these directly except for vim.path_hook
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380 in case you need to do something with sys.meta_path. It is not
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381 guaranteed that any of the objects will exist in the future vim
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382 versions.
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383
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384 vim._get_paths *python-_get_paths*
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385 Methods returning a list of paths which will be searched for by path
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386 hook. You should not rely on this method being present in future
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387 versions, but can use it for debugging.
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388
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389 It returns a list of {rtp}/python2 (or {rtp}/python3) and
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390 {rtp}/pythonx directories for each {rtp} in 'runtimepath'.
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391
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392 ==============================================================================
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393 3. Buffer objects *python-buffer*
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394
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395 Buffer objects represent vim buffers. You can obtain them in a number of ways:
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396 - via vim.current.buffer (|python-current|)
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397 - from indexing vim.buffers (|python-buffers|)
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398 - from the "buffer" attribute of a window (|python-window|)
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399
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400 Buffer objects have two read-only attributes - name - the full file name for
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401 the buffer, and number - the buffer number. They also have three methods
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402 (append, mark, and range; see below).
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403
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404 You can also treat buffer objects as sequence objects. In this context, they
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405 act as if they were lists (yes, they are mutable) of strings, with each
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406 element being a line of the buffer. All of the usual sequence operations,
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407 including indexing, index assignment, slicing and slice assignment, work as
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408 you would expect. Note that the result of indexing (slicing) a buffer is a
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409 string (list of strings). This has one unusual consequence - b[:] is different
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410 from b. In particular, "b[:] = None" deletes the whole of the buffer, whereas
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411 "b = None" merely updates the variable b, with no effect on the buffer.
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412
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413 Buffer indexes start at zero, as is normal in Python. This differs from vim
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414 line numbers, which start from 1. This is particularly relevant when dealing
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415 with marks (see below) which use vim line numbers.
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416
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417 The buffer object attributes are:
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418 b.vars Dictionary-like object used to access
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419 |buffer-variable|s.
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420 b.options Mapping object (supports item getting, setting and
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421 deleting) that provides access to buffer-local options
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422 and buffer-local values of |global-local| options. Use
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423 |python-window|.options if option is window-local,
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424 this object will raise KeyError. If option is
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425 |global-local| and local value is missing getting it
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426 will return None.
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427 b.name String, RW. Contains buffer name (full path).
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428 Note: when assigning to b.name |BufFilePre| and
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429 |BufFilePost| autocommands are launched.
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430 b.number Buffer number. Can be used as |python-buffers| key.
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431 Read-only.
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432 b.valid True or False. Buffer object becomes invalid when
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433 corresponding buffer is wiped out.
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434
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435 The buffer object methods are:
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436 b.append(str) Append a line to the buffer
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437 b.append(str, nr) Idem, below line "nr"
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438 b.append(list) Append a list of lines to the buffer
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439 Note that the option of supplying a list of strings to
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440 the append method differs from the equivalent method
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441 for Python's built-in list objects.
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442 b.append(list, nr) Idem, below line "nr"
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443 b.mark(name) Return a tuple (row,col) representing the position
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444 of the named mark (can also get the []"<> marks)
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445 b.range(s,e) Return a range object (see |python-range|) which
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446 represents the part of the given buffer between line
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447 numbers s and e |inclusive|.
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448
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449 Note that when adding a line it must not contain a line break character '\n'.
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450 A trailing '\n' is allowed and ignored, so that you can do: >
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451 :py b.append(f.readlines())
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diff changeset
452
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453 Buffer object type is available using "Buffer" attribute of vim module.
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454
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455 Examples (assume b is the current buffer) >
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456 :py print b.name # write the buffer file name
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457 :py b[0] = "hello!!!" # replace the top line
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458 :py b[:] = None # delete the whole buffer
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459 :py del b[:] # delete the whole buffer
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460 :py b[0:0] = [ "a line" ] # add a line at the top
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461 :py del b[2] # delete a line (the third)
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462 :py b.append("bottom") # add a line at the bottom
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463 :py n = len(b) # number of lines
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464 :py (row,col) = b.mark('a') # named mark
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465 :py r = b.range(1,5) # a sub-range of the buffer
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466 :py b.vars["foo"] = "bar" # assign b:foo variable
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467 :py b.options["ff"] = "dos" # set fileformat
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468 :py del b.options["ar"] # same as :set autoread<
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469
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470 ==============================================================================
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471 4. Range objects *python-range*
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472
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473 Range objects represent a part of a vim buffer. You can obtain them in a
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474 number of ways:
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475 - via vim.current.range (|python-current|)
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476 - from a buffer's range() method (|python-buffer|)
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diff changeset
477
236
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diff changeset
478 A range object is almost identical in operation to a buffer object. However,
7
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diff changeset
479 all operations are restricted to the lines within the range (this line range
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diff changeset
480 can, of course, change as a result of slice assignments, line deletions, or
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481 the range.append() method).
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diff changeset
482
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diff changeset
483 The range object attributes are:
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484 r.start Index of first line into the buffer
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diff changeset
485 r.end Index of last line into the buffer
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diff changeset
486
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diff changeset
487 The range object methods are:
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488 r.append(str) Append a line to the range
2391
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489 r.append(str, nr) Idem, after line "nr"
7
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490 r.append(list) Append a list of lines to the range
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diff changeset
491 Note that the option of supplying a list of strings to
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parents:
diff changeset
492 the append method differs from the equivalent method
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493 for Python's built-in list objects.
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diff changeset
494 r.append(list, nr) Idem, after line "nr"
7
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diff changeset
495
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diff changeset
496 Range object type is available using "Range" attribute of vim module.
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diff changeset
497
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498 Example (assume r is the current range):
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499 # Send all lines in a range to the default printer
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diff changeset
500 vim.command("%d,%dhardcopy!" % (r.start+1,r.end+1))
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diff changeset
501
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diff changeset
502 ==============================================================================
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diff changeset
503 5. Window objects *python-window*
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parents:
diff changeset
504
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diff changeset
505 Window objects represent vim windows. You can obtain them in a number of ways:
7
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diff changeset
506 - via vim.current.window (|python-current|)
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diff changeset
507 - from indexing vim.windows (|python-windows|)
4401
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diff changeset
508 - from indexing "windows" attribute of a tab page (|python-tabpage|)
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diff changeset
509 - from the "window" attribute of a tab page (|python-tabpage|)
7
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parents:
diff changeset
510
236
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diff changeset
511 You can manipulate window objects only through their attributes. They have no
7
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diff changeset
512 methods, and no sequence or other interface.
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513
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514 Window attributes are:
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515 buffer (read-only) The buffer displayed in this window
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diff changeset
516 cursor (read-write) The current cursor position in the window
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517 This is a tuple, (row,col).
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518 height (read-write) The window height, in rows
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diff changeset
519 width (read-write) The window width, in columns
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diff changeset
520 vars (read-only) The window |w:| variables. Attribute is
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parents: 4098
diff changeset
521 unassignable, but you can change window
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diff changeset
522 variables this way
4350
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parents: 4323
diff changeset
523 options (read-only) The window-local options. Attribute is
7eaccdaa5304 updated for version 7.3.924
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parents: 4323
diff changeset
524 unassignable, but you can change window
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Bram Moolenaar <bram@vim.org>
parents: 4323
diff changeset
525 options this way. Provides access only to
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Bram Moolenaar <bram@vim.org>
parents: 4323
diff changeset
526 window-local options, for buffer-local use
7eaccdaa5304 updated for version 7.3.924
Bram Moolenaar <bram@vim.org>
parents: 4323
diff changeset
527 |python-buffer| and for global ones use
7eaccdaa5304 updated for version 7.3.924
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parents: 4323
diff changeset
528 |python-options|. If option is |global-local|
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diff changeset
529 and local value is missing getting it will
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530 return None.
4379
a2f03b41dca7 updated for version 7.3.938
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parents: 4358
diff changeset
531 number (read-only) Window number. The first window has number 1.
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parents: 4358
diff changeset
532 This is zero in case it cannot be determined
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parents: 4358
diff changeset
533 (e.g. when the window object belongs to other
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parents: 4358
diff changeset
534 tab page).
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parents: 4417
diff changeset
535 row, col (read-only) On-screen window position in display cells.
4383
e2db42528a5b updated for version 7.3.940
Bram Moolenaar <bram@vim.org>
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diff changeset
536 First position is zero.
4431
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parents: 4417
diff changeset
537 tabpage (read-only) Window tab page.
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parents: 4704
diff changeset
538 valid (read-write) True or False. Window object becomes invalid
4700
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Bram Moolenaar <bram@vim.org>
parents: 4698
diff changeset
539 when corresponding window is closed.
4383
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parents: 4379
diff changeset
540
7
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diff changeset
541 The height attribute is writable only if the screen is split horizontally.
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parents:
diff changeset
542 The width attribute is writable only if the screen is split vertically.
3fc0f57ecb91 updated for version 7.0001
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parents:
diff changeset
543
4496
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parents: 4437
diff changeset
544 Window object type is available using "Window" attribute of vim module.
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Bram Moolenaar <bram@vim.org>
parents: 4437
diff changeset
545
7
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diff changeset
546 ==============================================================================
4401
cfd76908da25 updated for version 7.3.949
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parents: 4397
diff changeset
547 6. Tab page objects *python-tabpage*
cfd76908da25 updated for version 7.3.949
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parents: 4397
diff changeset
548
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parents: 4397
diff changeset
549 Tab page objects represent vim tab pages. You can obtain them in a number of
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Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
550 ways:
cfd76908da25 updated for version 7.3.949
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parents: 4397
diff changeset
551 - via vim.current.tabpage (|python-current|)
cfd76908da25 updated for version 7.3.949
Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
552 - from indexing vim.tabpages (|python-tabpages|)
cfd76908da25 updated for version 7.3.949
Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
553
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parents: 4397
diff changeset
554 You can use this object to access tab page windows. They have no methods and
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Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
555 no sequence or other interfaces.
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Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
556
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parents: 4397
diff changeset
557 Tab page attributes are:
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Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
558 number The tab page number like the one returned by
cfd76908da25 updated for version 7.3.949
Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
559 |tabpagenr()|.
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Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
560 windows Like |python-windows|, but for current tab page.
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Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
561 vars The tab page |t:| variables.
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Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
562 window Current tabpage window.
4780
2b11ac90d9e9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 4704
diff changeset
563 valid True or False. Tab page object becomes invalid when
4700
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Bram Moolenaar <bram@vim.org>
parents: 4698
diff changeset
564 corresponding tab page is closed.
4401
cfd76908da25 updated for version 7.3.949
Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
565
4496
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parents: 4437
diff changeset
566 TabPage object type is available using "TabPage" attribute of vim module.
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Bram Moolenaar <bram@vim.org>
parents: 4437
diff changeset
567
4401
cfd76908da25 updated for version 7.3.949
Bram Moolenaar <bram@vim.org>
parents: 4397
diff changeset
568 ==============================================================================
4627
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
569 7. vim.bindeval objects *python-bindeval-objects*
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
570
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
571 vim.Dictionary object *python-Dictionary*
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
572 Dictionary-like object providing access to vim |Dictionary| type.
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
573 Attributes:
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
574 Attribute Description ~
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
575 locked One of *python-.locked*
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
576 Value Description ~
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
577 zero Variable is not locked
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
578 vim.VAR_LOCKED Variable is locked, but can be unlocked
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
579 vim.VAR_FIXED Variable is locked and can't be unlocked
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
580 Read-write. You can unlock locked variable by assigning
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
581 `True` or `False` to this attribute. No recursive locking
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
582 is supported.
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
583 scope One of
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
584 Value Description ~
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
585 zero Dictionary is not a scope one
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
586 vim.VAR_DEF_SCOPE |g:| or |l:| dictionary
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
587 vim.VAR_SCOPE Other scope dictionary,
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
588 see |internal-variables|
4639
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
589 Methods (note: methods do not support keyword arguments):
4627
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
590 Method Description ~
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
591 keys() Returns a list with dictionary keys.
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
592 values() Returns a list with dictionary values.
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
593 items() Returns a list of 2-tuples with dictionary contents.
4639
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parents: 4627
diff changeset
594 update(iterable), update(dictionary), update(**kwargs)
4627
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
595 Adds keys to dictionary.
4639
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
596 get(key[, default=None])
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
597 Obtain key from dictionary, returning the default if it is
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
598 not present.
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
599 pop(key[, default])
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
600 Remove specified key from dictionary and return
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
601 corresponding value. If key is not found and default is
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
602 given returns the default, otherwise raises KeyError.
4698
2db005052371 updated for version 7.3.1096
Bram Moolenaar <bram@vim.org>
parents: 4681
diff changeset
603 popitem()
2db005052371 updated for version 7.3.1096
Bram Moolenaar <bram@vim.org>
parents: 4681
diff changeset
604 Remove random key from dictionary and return (key, value)
2db005052371 updated for version 7.3.1096
Bram Moolenaar <bram@vim.org>
parents: 4681
diff changeset
605 pair.
4639
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Bram Moolenaar <bram@vim.org>
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diff changeset
606 has_key(key)
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
607 Check whether dictionary contains specified key, similar
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
608 to `key in dict`.
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
609
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Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
610 __new__(), __new__(iterable), __new__(dictionary), __new__(update)
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
611 You can use `vim.Dictionary()` to create new vim
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
612 dictionaries. `d=vim.Dictionary(arg)` is the same as
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
613 `d=vim.bindeval('{}');d.update(arg)`. Without arguments
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
614 constructs empty dictionary.
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
615
4627
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diff changeset
616 Examples: >
4639
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diff changeset
617 d = vim.Dictionary(food="bar") # Constructor
4627
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diff changeset
618 d['a'] = 'b' # Item assignment
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diff changeset
619 print d['a'] # getting item
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diff changeset
620 d.update({'c': 'd'}) # .update(dictionary)
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
621 d.update(e='f') # .update(**kwargs)
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parents: 4589
diff changeset
622 d.update((('g', 'h'), ('i', 'j'))) # .update(iterable)
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
623 for key in d.keys(): # .keys()
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parents: 4589
diff changeset
624 for val in d.values(): # .values()
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
625 for key, val in d.items(): # .items()
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
626 print isinstance(d, vim.Dictionary) # True
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
627 for key in d: # Iteration over keys
4639
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diff changeset
628 class Dict(vim.Dictionary): # Subclassing
4627
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
629 <
18ba89e06fab updated for version 7.3.1061
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parents: 4589
diff changeset
630 Note: when iterating over keys you should not modify dictionary.
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
631
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
632 vim.List object *python-List*
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
633 Sequence-like object providing access to vim |List| type.
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
634 Supports `.locked` attribute, see |python-.locked|. Also supports the
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
635 following methods:
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
636 Method Description ~
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
637 extend(item) Add items to the list.
4639
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Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
638
52a4f66ae1f5 updated for version 7.3.1067
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diff changeset
639 __new__(), __new__(iterable)
52a4f66ae1f5 updated for version 7.3.1067
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parents: 4627
diff changeset
640 You can use `vim.List()` to create new vim lists.
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
641 `l=vim.List(iterable)` is the same as
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
642 `l=vim.bindeval('[]');l.extend(iterable)`. Without
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
643 arguments constructs empty list.
4627
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
644 Examples: >
4639
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
645 l = vim.List("abc") # Constructor, result: ['a', 'b', 'c']
4627
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
646 l.extend(['abc', 'def']) # .extend() method
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
647 print l[1:] # slicing
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
648 l[:0] = ['ghi', 'jkl'] # slice assignment
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
649 print l[0] # getting item
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
650 l[0] = 'mno' # assignment
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
651 for i in l: # iteration
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
652 print isinstance(l, vim.List) # True
4639
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
653 class List(vim.List): # Subclassing
4627
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
654
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Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
655 vim.Function object *python-Function*
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
656 Function-like object, acting like vim |Funcref| object. Supports `.name`
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
657 attribute and is callable. Accepts special keyword argument `self`, see
4639
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
658 |Dictionary-function|. You can also use `vim.Function(name)` constructor,
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
659 it is the same as `vim.bindeval('function(%s)'%json.dumps(name))`.
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
660
4627
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
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diff changeset
661 Examples: >
4639
52a4f66ae1f5 updated for version 7.3.1067
Bram Moolenaar <bram@vim.org>
parents: 4627
diff changeset
662 f = vim.Function('tr') # Constructor
4627
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
663 print f('abc', 'a', 'b') # Calls tr('abc', 'a', 'b')
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
664 vim.command('''
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
665 function DictFun() dict
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
666 return self
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
667 endfunction
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
668 ''')
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
669 f = vim.bindeval('function("DictFun")')
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
670 print f(self={}) # Like call('DictFun', [], {})
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
671 print isinstance(f, vim.Function) # True
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
672
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
673 ==============================================================================
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
674 8. pyeval() and py3eval() Vim functions *python-pyeval*
3682
11d40fc82f11 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 3312
diff changeset
675
11d40fc82f11 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 3312
diff changeset
676 To facilitate bi-directional interface, you can use |pyeval()| and |py3eval()|
11d40fc82f11 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 3312
diff changeset
677 functions to evaluate Python expressions and pass their values to VimL.
11d40fc82f11 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 3312
diff changeset
678
11d40fc82f11 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 3312
diff changeset
679 ==============================================================================
4627
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
680 9. Dynamic loading *python-dynamic*
557
862863033fdd updated for version 7.0158
vimboss
parents: 236
diff changeset
681
7196
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
682 On MS-Windows and Unix the Python library can be loaded dynamically. The
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
683 |:version| output then includes |+python/dyn| or |+python3/dyn|.
557
862863033fdd updated for version 7.0158
vimboss
parents: 236
diff changeset
684
7196
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
685 This means that Vim will search for the Python DLL or shared library file only
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
686 when needed. When you don't use the Python interface you don't need it, thus
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
687 you can use Vim without this file.
557
862863033fdd updated for version 7.0158
vimboss
parents: 236
diff changeset
688
7196
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
689 On MS-Windows to use the Python interface the Python DLL must be in your search
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
690 path. In a console window type "path" to see what directories are used.
557
862863033fdd updated for version 7.0158
vimboss
parents: 236
diff changeset
691
862863033fdd updated for version 7.0158
vimboss
parents: 236
diff changeset
692 The name of the DLL must match the Python version Vim was compiled with.
862863033fdd updated for version 7.0158
vimboss
parents: 236
diff changeset
693 Currently the name is "python24.dll". That is for Python 2.4. To know for
862863033fdd updated for version 7.0158
vimboss
parents: 236
diff changeset
694 sure edit "gvim.exe" and search for "python\d*.dll\c".
862863033fdd updated for version 7.0158
vimboss
parents: 236
diff changeset
695
7228
873eae260c97 commit https://github.com/vim/vim/commit/b4ff518d95aa57c2f8c0568c915035bef849581b
Christian Brabandt <cb@256bit.org>
parents: 7196
diff changeset
696 On Unix the 'pythondll' or 'pythonthreedll' option can be used to specify the
7196
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
697 Python shared library file instead of DYNAMIC_PYTHON_DLL or
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
698 DYNAMIC_PYTHON3_DLL file what were specified at compile time. The version of
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
699 the shared library must match the Python 2.x or Python 3 version Vim was
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
700 compiled with.
42717d048817 commit https://github.com/vim/vim/commit/d94464ee294a351ce7b6ba18e8bd3f24f1bef920
Christian Brabandt <cb@256bit.org>
parents: 6091
diff changeset
701
557
862863033fdd updated for version 7.0158
vimboss
parents: 236
diff changeset
702 ==============================================================================
4627
18ba89e06fab updated for version 7.3.1061
Bram Moolenaar <bram@vim.org>
parents: 4589
diff changeset
703 10. Python 3 *python3*
2340
99c1eba60b2d Make automatic prototype generation work with more interfaces.
Bram Moolenaar <bram@vim.org>
parents: 2154
diff changeset
704
2560
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
705 *:py3* *:python3*
4435
9b800f0a757f updated for version 7.3.966
Bram Moolenaar <bram@vim.org>
parents: 4431
diff changeset
706 The `:py3` and `:python3` commands work similar to `:python`. A simple check
4098
058f26a834c4 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 4073
diff changeset
707 if the `:py3` command is working: >
3750
536aa8b0c934 Update runtime files.
Bram Moolenaar <bram@vim.org>
parents: 3682
diff changeset
708 :py3 print("Hello")
536aa8b0c934 Update runtime files.
Bram Moolenaar <bram@vim.org>
parents: 3682
diff changeset
709 < *:py3file*
4435
9b800f0a757f updated for version 7.3.966
Bram Moolenaar <bram@vim.org>
parents: 4431
diff changeset
710 The `:py3file` command works similar to `:pyfile`.
4431
7d81f4e96728 updated for version 7.3.964
Bram Moolenaar <bram@vim.org>
parents: 4417
diff changeset
711 *:py3do* *E863*
4435
9b800f0a757f updated for version 7.3.966
Bram Moolenaar <bram@vim.org>
parents: 4431
diff changeset
712 The `:py3do` command works similar to `:pydo`.
4417
c16602758d84 updated for version 7.3.957
Bram Moolenaar <bram@vim.org>
parents: 4407
diff changeset
713
3682
11d40fc82f11 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 3312
diff changeset
714
2409
0ca06a92adfb Add support for horizontal scroll wheel. (Bjorn Winckler)
Bram Moolenaar <bram@vim.org>
parents: 2391
diff changeset
715 Vim can be built in four ways (:version output):
2560
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
716 1. No Python support (-python, -python3)
2409
0ca06a92adfb Add support for horizontal scroll wheel. (Bjorn Winckler)
Bram Moolenaar <bram@vim.org>
parents: 2391
diff changeset
717 2. Python 2 support only (+python or +python/dyn, -python3)
0ca06a92adfb Add support for horizontal scroll wheel. (Bjorn Winckler)
Bram Moolenaar <bram@vim.org>
parents: 2391
diff changeset
718 3. Python 3 support only (-python, +python3 or +python3/dyn)
0ca06a92adfb Add support for horizontal scroll wheel. (Bjorn Winckler)
Bram Moolenaar <bram@vim.org>
parents: 2391
diff changeset
719 4. Python 2 and 3 support (+python/dyn, +python3/dyn)
2340
99c1eba60b2d Make automatic prototype generation work with more interfaces.
Bram Moolenaar <bram@vim.org>
parents: 2154
diff changeset
720
5220
050893d44c33 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 5146
diff changeset
721 Some more details on the special case 4: *python-2-and-3*
2560
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
722
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
723 When Python 2 and Python 3 are both supported they must be loaded dynamically.
2540
9397d2d76340 Runtime file updates.
Bram Moolenaar <bram@vim.org>
parents: 2527
diff changeset
724
2560
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
725 When doing this on Linux/Unix systems and importing global symbols, this leads
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
726 to a crash when the second Python version is used. So either global symbols
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
727 are loaded but only one Python version is activated, or no global symbols are
2608
7d8af31066c8 Updated runtime files and translations.
Bram Moolenaar <bram@vim.org>
parents: 2577
diff changeset
728 loaded. The latter makes Python's "import" fail on libraries that expect the
2560
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
729 symbols to be provided by Vim.
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
730 *E836* *E837*
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
731 Vim's configuration script makes a guess for all libraries based on one
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
732 standard Python library (termios). If importing this library succeeds for
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
733 both Python versions, then both will be made available in Vim at the same
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
734 time. If not, only the version first used in a session will be enabled.
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
735 When trying to use the other one you will get the E836 or E837 error message.
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
736
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
737 Here Vim's behavior depends on the system in which it was configured. In a
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
738 system where both versions of Python were configured with --enable-shared,
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
739 both versions of Python will be activated at the same time. There will still
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
740 be problems with other third party libraries that were not linked to
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
741 libPython.
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
742
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
743 To work around such problems there are these options:
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
744 1. The problematic library is recompiled to link to the according
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
745 libpython.so.
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
746 2. Vim is recompiled for only one Python version.
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
747 3. You undefine PY_NO_RTLD_GLOBAL in auto/config.h after configuration. This
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
748 may crash Vim though.
84ba6293f9d7 Preparations for 7.3f release.
Bram Moolenaar <bram@vim.org>
parents: 2554
diff changeset
749
5088
34c629c3b4ba updated for version 7.3.1287
Bram Moolenaar <bram@vim.org>
parents: 5055
diff changeset
750 *E880*
34c629c3b4ba updated for version 7.3.1287
Bram Moolenaar <bram@vim.org>
parents: 5055
diff changeset
751 Raising SystemExit exception in python isn't endorsed way to quit vim, use: >
34c629c3b4ba updated for version 7.3.1287
Bram Moolenaar <bram@vim.org>
parents: 5055
diff changeset
752 :py vim.command("qall!")
34c629c3b4ba updated for version 7.3.1287
Bram Moolenaar <bram@vim.org>
parents: 5055
diff changeset
753 <
34c629c3b4ba updated for version 7.3.1287
Bram Moolenaar <bram@vim.org>
parents: 5055
diff changeset
754
2826
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
755 *has-python*
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
756 You can test what Python version is available with: >
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
757 if has('python')
3082
3502a7f991fc Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2826
diff changeset
758 echo 'there is Python 2.x'
2826
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
759 elseif has('python3')
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
760 echo 'there is Python 3.x'
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
761 endif
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
762
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
763 Note however, that when Python 2 and 3 are both available and loaded
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
764 dynamically, these has() calls will try to load them. If only one can be
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
765 loaded at a time, just checking if Python 2 or 3 are available will prevent
3c7da93eb7f9 Updated runtime files.
Bram Moolenaar <bram@vim.org>
parents: 2608
diff changeset
766 the other one from being available.
2340
99c1eba60b2d Make automatic prototype generation work with more interfaces.
Bram Moolenaar <bram@vim.org>
parents: 2154
diff changeset
767
99c1eba60b2d Make automatic prototype generation work with more interfaces.
Bram Moolenaar <bram@vim.org>
parents: 2154
diff changeset
768 ==============================================================================
7
3fc0f57ecb91 updated for version 7.0001
vimboss
parents:
diff changeset
769 vim:tw=78:ts=8:ft=help:norl: