ModuleNotFoundError: No module named 'gi'

**Describe the bug**

This page (and presumably the whole build) is broken https://guake.readthedocs.io/en/latest/user/cli.html

**Expected behavior**

Program should run

**Actual behavior**

Program does not run...

```
Traceback (most recent call last):
File "/home/docs/checkouts/readthedocs.org/user_builds/guake/envs/latest/bin/guake", line 33, in
sys.exit(load_entry_point('guake==3.9.1.dev16', 'console_scripts', 'guake')())
File "/home/docs/checkouts/readthedocs.org/user_builds/guake/envs/latest/bin/guake", line 25, in importlib_load_entry_point
return next(matches).load()
File "/home/docs/checkouts/readthedocs.org/user_builds/guake/envs/latest/lib/python3.7/site-packages/importlib_metadata/__init__.py", line 203, in load
module = import_module(match.group('module'))
File "/home/docs/checkouts/readthedocs.org/user_builds/guake/envs/latest/lib/python3.7/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "", line 1006, in _gcd_import
File "", line 983, in _find_and_load
File "", line 967, in _find_and_load_unlocked
File "", line 668, in _load_unlocked
File "", line 638, in _load_backward_compatible
File "/home/docs/checkouts/readthedocs.org/user_builds/guake/envs/latest/lib/python3.7/site-packages/guake-3.9.1.dev16-py3.7.egg/guake/main.py", line 54, in
File "/home/docs/checkouts/readthedocs.org/user_builds/guake/envs/latest/lib/python3.7/site-packages/guake-3.9.1.dev16-py3.7.egg/guake/support.py", line 5, in
ModuleNotFoundError: No module named 'gi'

```

**To Reproduce**
Go to url above.