[issue42772] randrange() mishandles step when stop is None

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

Upon further reflection, I think these cases should raise a TypeError because the meaning is ambiguous:

    randrange(1000, step=10) # Could only mean start=0 stop=1000 step=10

but that conflicts with:

    randrange(1000, None, 100)  # Has no reasonable interpretation

For comparison, this currently raises a TypeError because None isn't a sensible argument for stop:

    range(1000, None, 100)

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<https://bugs.python.org/issue42772>
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