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bpo-37319: Improve documentation, code and tests of randrange. (GH-19112)

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Serhiy Storchaka 2021-01-25 23:02:04 +02:00 • committed by GitHub
parent eb9983c59b
commit f066bd94b9
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5 changed files with 48 additions and 34 deletions
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44
Lib/random.py
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@ -303,17 +303,15 @@ class Random(_random.Random):
try:
istart = _index(start)
except TypeError:
if int(start) == start:
istart = int(start)
_warn('Float arguments to randrange() have been deprecated\n'
'since Python 3.10 and will be removed in a subsequent '
'version.',
DeprecationWarning, 2)
else:
istart = int(start)
if istart != start:
_warn('randrange() will raise TypeError in the future',
DeprecationWarning, 2)
raise ValueError("non-integer arg 1 for randrange()")
_warn('non-integer arguments to randrange() have been deprecated '
'since Python 3.10 and will be removed in a subsequent '
'version',
DeprecationWarning, 2)
if stop is None:
# We don't check for "step != 1" because it hasn't been
# type checked and converted to an integer yet.
@ -327,31 +325,29 @@ class Random(_random.Random):
try:
istop = _index(stop)
except TypeError:
if int(stop) == stop:
istop = int(stop)
_warn('Float arguments to randrange() have been deprecated\n'
'since Python 3.10 and will be removed in a subsequent '
'version.',
DeprecationWarning, 2)
else:
istop = int(stop)
if istop != stop:
_warn('randrange() will raise TypeError in the future',
DeprecationWarning, 2)
raise ValueError("non-integer stop for randrange()")
_warn('non-integer arguments to randrange() have been deprecated '
'since Python 3.10 and will be removed in a subsequent '
'version',
DeprecationWarning, 2)
width = istop - istart
try:
istep = _index(step)
except TypeError:
if int(step) == step:
istep = int(step)
_warn('Float arguments to randrange() have been deprecated\n'
'since Python 3.10 and will be removed in a subsequent '
'version.',
DeprecationWarning, 2)
else:
istep = int(step)
if istep != step:
_warn('randrange() will raise TypeError in the future',
DeprecationWarning, 2)
raise ValueError("non-integer step for randrange()")
width = istop - istart
_warn('non-integer arguments to randrange() have been deprecated '
'since Python 3.10 and will be removed in a subsequent '
'version',
DeprecationWarning, 2)
# Fast path.
if istep == 1:
if width > 0:
return istart + self._randbelow(width)