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isamert / gedi

a python code completion plugin for gedit3+
GNU General Public License v3.0
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Gedi does not respect virtualenvs #4

Closed djbucci closed 7 years ago

djbucci commented 7 years ago

Is there a way to get Gedi to read the site-packages based on the currently activated python virtualenv? The natural idea of running gedit from within the virtualenv doesn't seem to recognize the virtualenv's site-packages.

isamert commented 7 years ago

I actually get code completion in a virtualenv. Did you get any output or warning while starting gedit in virtualenv?

isamert commented 7 years ago

It seems like python plugins in gedit only works if you create virtualenv with --system-site-packages otherwise the plugin just don't load. It complains about the gi package being missing. I tried to install required packages with pip but it caused other errors. But I was able to run gedit after creating a symlink to system package in virtualenv. So what I did was:

ln -s /usr/lib64/python3.5/site-packages/gi $VIRTUAL_ENV/lib/python3.5/site-packages/

The gi path can change according to your distro. It can be placed in dist-packages folder or look for python packages under /usr/lib instead of /usr/lib64.

Then you can run gedit in that virtualenv. Also you need to install jedi with pip:

pip install jedi

Another way to get things right as I mentioned in first sentence is creating your virtualenv with --system-site-packages parameter. But if you want to isolate your virtualenv fully, use the solution above.

Can you confirm it runs with this settings?

djbucci commented 7 years ago

So the plugin itself definitely runs both in a virtualenv and in the base system env. To get it to work initially, I used the symbolic linking of gi from site-packages into the virtualenv as you specified. Once it actually activates in gedit, the console output in the terminal looks like this

Gedi is activated. (gedit:8984): Gtk-CRITICAL **: gtk_widget_get_preferred_width_for_height: assertion 'height >= 0' failed (gedit:8984): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width 10 and height -27

The two Gtk errors show up as soon as the first context menu appears. I'm pretty sure though that those are unrelated to the code completion with packages.

I actually just looked around a little, and I think it has to do with the fact that my virtualenv is Python2.7. For example, if I try to tab complete based on a package installed into the OS environment defined at /usr/lib/python2.7, gedi does not tab complete. It does however tab complete for all of the packages installed in /usr/lib/python3. Does that make sense?

Thanks again for your help.

isamert commented 7 years ago

I tried a few things to get it work with python2 packages but it failed. I looked into jedi-vim plugin and as far as I understand it uses python2 to start jedi when python2 support is needed. Gedit3+ extensions only works with python3, so there is no way to start extension in python2 which makes completion impossible.