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"YouCompleteMe unavailable: requires python 2.x" message despite Python 2.x being installed #35

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stuartmemo opened this Issue Feb 5, 2013 · 12 comments

10 participants

@weaksauce

check the output of

:python <<eof
import sys
print(sys.version)
eof

if it throws an error you don't have python installed for vim.

@Valloric
Owner
Valloric commented Feb 5, 2013

Yeah, you need python2 support in Vim, not just in your system.

@Valloric Valloric closed this Feb 5, 2013
@reklis
reklis commented Feb 12, 2013

macports has a python27 variant, you can install via sudo port install macvim +python27

This was referenced May 21, 2013
@jProvim
jProvim commented Oct 26, 2013

If you installed your vim and macvim and python used homebrew, you might refer the following link.
This is a work-around solution.

Gist:
cd /System/Library/Frameworks/Python.framework/Versions
sudo mv Current Current-sys
sudo ln -s /usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7 Current

brew install macvim
#brew reinstall macvim

sudo mv Current Current-brew
sudo mv Current-sys Current

I tested and verified with OS X 10.9.

ref: http://superuser.com/questions/461845/how-can-i-use-the-homebrew-python-with-homebrew-macvim-on-mountain-lion

Another possible solution: http://superuser.com/questions/440981/how-can-i-use-the-homebrew-python-version-with-homebrew-macvim-on-snow-leopard

@guileen
guileen commented Jan 14, 2014

I have python 2.6, I also get this error.

@neitanod
neitanod commented Sep 9, 2014

I want to clone my dotfiles folder (that include the plugins I use) into several remotes where I'm not root, and some of them don't have Python 2.
What I am trying to achieve is a highly portable configuration.
Is there a way of degrading gracefully and start Vim without the error message?

@mengzyou

I checked my vim verison:

$vi --version | grep python
+cryptv          +linebreak       +python/dyn      +viminfo
+cscope          +lispindent      +python3/dyn     +vreplace

we can see, have +python/dyn, but it still report this error when I open my vim.

@den-is
den-is commented Feb 22, 2016

Same here
very same output as comment above
Running Fedora 23

@esphen
esphen commented Mar 3, 2016

Same as den-is and mengzdsd, +python/dyn in vim --version, yet it complains about python 2.x not available. Also Fedora 23

@Valloric
Owner
Valloric commented Mar 3, 2016

@esphen What's the output of :echo has('python') for you? My guess is it's 0 because python/dyn means python is loaded dynamically once it's used. YCM checks for python support existing instead of using it and hoping for the best.

@esphen
esphen commented Mar 3, 2016

@Valloric Correct, it is 0, Also, echo has('python3') gives me 1. Thanks for the plug on what python/dyn means. Since vim on Fedora is compiled with this, does this mean I can get vim to detect python2 using some config?

@Valloric
Owner
Valloric commented Mar 3, 2016

@esphen If you get 1 for echo has('python3'), you're golden as soon as #2016 lands, which should be any day now. :)

In fact, we'd love it if you could give that branch a spin and report back on that thread.

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