Don't fall for it!
The Zen of Python must not have been invented yet because this feature is confusing, not obvious, implicit, and much more. Private name mangling in Python converts variable usages like __var into _ClassName__var at compile time and there's no warning it's happening until you run into the trap.
― mCoding with James Murphy (https://mcoding.io)
Source code: https://github.com/mCodingLLC/VideosSampleCode
Python docs: https://docs.python.org/3/tutorial/classes.html?highlight=private#private-variables
CPython mangle: https://github.com/python/cpython/blob/ab02262cd0385a2fb5eb8a6ee3cedd4b4bb969f3/Python/compile.c#L542
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CHAPTERS
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0:00 Unexpected output
2:31 Private name mangling
4:23 Python does not have private variables
4:54 Mangling rules
6:51 Mangling at compile time
8:28 Compiler explorer
10:18 getattr and setattr
10:55 To mangle or not to mangle?
13:53 Thanks