Idea: better cleanup

[ionelmc]

Automatically release lock if it gets garbage collected. Eg:

• https://code.activestate.com/recipes/578998-systemmutex/
• http://pydev.blogspot.ro/2015/01/creating-safe-cyclic-reference.html

[Suor]

Please don't do that. Explicit handling is more reliable.

[ionelmc]

Good programming is more reliable yes 😁 but maybe at least emit a warning when a held lock is getting __del__eted.

[ionelmc]

That would be exactly like how Python 3 emits warnings when you forgot to close the file.

[AndreiPashkin]

In cases when you have lock shared between processes, you want it to live even after some process is gone.

[AndreiPashkin]

Auto-renewal thread should probably be cleaned up on garbage collection

[ionelmc]

(the autorenewal cleanup implemented in #33)