Comments by "Dr Gamma D" (@DrDeuteron) on ""groupby" in Python is Awesome" video.

  1. itertools is written by pystro: Raymond Hettinger, and it is optimized af. Moreover: it reduces your code's cyclomatic complexity. Many for loops, with indented if-blocks disappear. IT doesn't matter that they occur in functions, they are NOT in your code, and your code is less complex by definition of complexity.
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  2.  @TragicGFuel  RTFM
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  3. Exercise: make up an exercise that uses groupby.
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  4.  @TragicGFuel  read the manual
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