I've seen a lot of Python from Google using two spaces, which I find very hard to read. Many of the samples here use two-space indentation: https://github.com/google/google-api-python-client/blob/mast...

Here's a specific example: https://github.com/google/google-api-python-client/blob/mast...

This is either outdated or only for the public version of the guide: the internal guide, and all our python code, has 2-spaces indents.