Message 255665 - Python tracker

OK, here's a patch.

I reviewed the doc style guide [0] but I'm not 100% sure if I'm using the appropriate tense. There are also a couple of lines that go a bit over 80 characters, but the file already had a few of those.

Am happy to make any adjustments, if necessary.

[0] https://docs.python.org/devguide/documenting.html#style-guide