Message 282268 - Python tracker

Thank you Serhiy!

That leaves this just as a pending update for 3.5.3 to bring it into line with 3.6.0.

I've reverted the stage to "needs patch" and removed the patch keyword, as the 3.5 patch will be slightly different:

- using 3.5.3 in the versionchanged notice
- adjusting the 3.5 What's New to change the list of deprecated inspect module APIs