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-rw-r--r--runtime/plugin/python_setup.vim20
1 files changed, 17 insertions, 3 deletions
diff --git a/runtime/plugin/python_setup.vim b/runtime/plugin/python_setup.vim
index 3a6c61bd1d..0070885958 100644
--- a/runtime/plugin/python_setup.vim
+++ b/runtime/plugin/python_setup.vim
@@ -4,6 +4,14 @@ if exists("did_python_setup") || &cp
endif
let did_python_setup = 1
+" Prefix for naming things and displaying output.
+let s:plugin_name = 'Python setup'
+
+function! s:ShowError(message)
+ echohl ErrorMsg
+ echomsg s:plugin_name . ': ' . a:message . '.'
+ echohl None
+endfunction
let s:get_version =
\ ' -c "import sys; sys.stdout.write(str(sys.version_info[0]) + '.
@@ -24,23 +32,29 @@ elseif executable('python2')
" In some distros, python3 is the default python
let s:python_interpreter = 'python2'
else
+ call s:ShowError('No python interpreter found')
finish
endif
+" Make sure we pick correct python version on path.
+let s:python_interpreter_path = exepath(s:python_interpreter)
+let s:python_version = systemlist(s:python_interpreter_path . ' --version')[0]
+
" Execute python, import neovim and print a string. If import_result matches
" the printed string, we can probably start the host
-let s:import_result = system(s:python_interpreter .
+let s:import_result = system(s:python_interpreter_path .
\ ' -c "import neovim, sys; sys.stdout.write(\"ok\")"')
if s:import_result != 'ok'
+ call s:ShowError('No neovim module found for ' . s:python_version)
finish
endif
-let s:pyhost_id = rpcstart(s:python_interpreter,
+let s:pyhost_id = rpcstart(s:python_interpreter_path,
\ ['-c', 'import neovim; neovim.start_host()'])
" Evaluate an expression in the script host as an additional sanity check, and
" to block until all providers have been registered(or else some plugins loaded
" by the user's vimrc would not get has('python') == 1
if rpcrequest(s:pyhost_id, 'python_eval', '"o"+"k"') != 'ok' || !has('python')
- " Something went wrong
+ call s:ShowError('Something went wrong setting up ' . s:python_version)
call rpcstop(s:pyhost_id)
endif