Raymond Hettinger <[email protected]> added the comment:
Another solution is to use an identity test for the step argument
_one = 1
class Random:
def randrange(start, stop=None, step=_one):
...
if stop is None and step is _one:
if istart > 0:
return self._randbelow(istart)
This has the advantage of keeping the API unchanged while still keeping the
fast path fast.
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<https://bugs.python.org/issue42772>
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