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Sonophoto/gist:602a923274a900fd5d49de69756e2c43

Last active June 20, 2016 01:50
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The infamous python comma
Raw
gistfile1.txt
so a C programmer sees:
a, b=b, a
and thinks:
(a), (b=b), (a)
and wonders WTF?
but python thinks:
(a,b) = (b,a)
and swaps a and b with no more effort and no intermediate...
WHY? Because in Python, COMMA is NOT AN OPERATOR
comma is just a seperator and has no magic.
specifically it seperates things into tuples...
ALSO! it should be written a,b = b,a but python doesn't
see the whitespace either...
a,b,c,d = d,c,b,a works too, very cool!
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