commit https://github.com/vim/vim/commit/1000565c3a2439c9a7c9759284814dbf3b8bc20d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Dec 31 21:03:23 2015 +0100 patch 7.4.1012 Problem: Vim overwrites the value of $PYTHONHOME. Solution: Do not set $PYTHONHOME if it is already set. (Kazuki Sakamoto, closes https://github.com/vim/vim/issues/500)

" Test for expression comparators.   vim: set ft=vim :


STARTTEST
:so small.vim
:try
:  let oldisident=&isident
:  set isident+=#
:  if 1 is#1
:    $put ='ok'
:  else
:    $put ='ng'
:  endif
:finally
:  let &isident=oldisident
:endtry
:"
:/^marker/+1,$wq! test.out
ENDTEST

marker