Python's secret second argument to iter()

Iter can take TWO args, lets take a look.

Did you know that Python’s iter() builtin can actually take TWO arguments? This is a very obscure feature of Python. In this video we see how it differs from the very common single-argument form of iter(), how to use it, and what a better alternative is.

― mCoding with James Murphy (https://mcoding.io)

Source code: https://github.com/mCodingLLC/VideosSampleCode
iter docs: https://docs.python.org/3/library/functions.html#iter
assignment expression docs: https://peps.python.org/pep-0572/

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CHAPTERS
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0:00 Intro
0:12 Single arg iter
1:17 Two arg iter
5:47 Walrus operator