patch 8.0.0251: not easy to select Python 2 or 3 commit https://github.com/vim/vim/commit/f42dd3c3901ea0ba38e67a616aea9953cae81b8d Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 28 16:06:38 2017 +0100 patch 8.0.0251: not easy to select Python 2 or 3 Problem: It is not so easy to write a script that works with both Python 2 and Python 3, even when the Python code works with both. Solution: Add 'pyxversion', :pyx, etc. (Marc Weber, Ken Takata)

--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -288,6 +288,11 @@ static void	ex_popup(exarg_T *eap);
 # define ex_py3do		ex_ni
 # define ex_py3file		ex_ni
 #endif
+#if !defined(FEAT_PYTHON) && !defined(FEAT_PYTHON3)
+# define ex_pyx			ex_script_ni
+# define ex_pyxdo		ex_ni
+# define ex_pyxfile		ex_ni
+#endif
 #ifndef FEAT_TCL
 # define ex_tcl			ex_script_ni
 # define ex_tcldo		ex_ni