Harrison Chudleigh <harrison.chudlei...@education.nsw.gov.au> writes:
> Currently, the closest thing Python has to a 2D array is a dictionary
> containing lists.

Tuples work fine:
  d = {}
  d[2,3] = 5  # etc...

> Is this idea PEPable?

I don't think it would get any traction.  If you're doing something
numerical that needs 2d arrays, numpy supports them.  Actually, looking
at your application, numpy might be what you want.
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