A hard exercise to help build the right mental model for Python data.

The “Solution” link visualizes execution and reveals what’s actually happening using 𝗺𝗲𝗺𝗼𝗿𝘆_𝗴𝗿𝗮𝗽𝗵: https://github.com/bterwijn/memory_graph

  • bterwijn@programming.devOP
    3·
    6 days ago

    There is one important difference between a |= b and a = a | b, that is one part that makes this exercise difficult. See the dictionary docs (https://docs.python.org/3/builtins/stdtypes.html#dict):

    d |= other Update the dictionary d with keys and values from other, which may be either a mapping or an iterable of key/value pairs. The values of other take priority when d and other share keys. Added in version 3.9.

    Pick your answer and check the Solution link.

    The zen of Python lies unless you’re Dutch. I’m Dutch and when I look out of my office I see the CWI where Guido wrote the original Python versions back in the day, see “Python the documentory” on YouTube.

    • esa@discuss.tchncs.de
      2·
      6 days ago

      I was trying not to spoil that a |= b and a = a | b have different semantics though, as that pretty much winds up giving away the answer IMO