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gh-41431: Add datetime.time.strptime() and datetime.date.strptime() (#120752)

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* Python implementation

* C implementation

* Test `date.strptime`

* Test `time.strptime`

* 📜🤖 Added by blurb_it.

* Update whatsnew

* Update documentation

* Add leap year note

* Update 2024-06-19-19-53-42.gh-issue-41431.gnkUc5.rst

* Apply suggestions from code review

Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>

* Remove parentheses

* Use helper function

* Remove bad return

* Link to github issue

* Fix directive

* Apply suggestions from code review

Co-authored-by: Paul Ganssle <1377457+pganssle@users.noreply.github.com>

* Fix test cases

---------

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Paul Ganssle <1377457+pganssle@users.noreply.github.com>
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Nice Zombies 2024-09-25 23:43:58 +02:00 • committed by GitHub
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11 changed files with 350 additions and 36 deletions
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44
Lib/_strptime.py
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@ -567,18 +567,40 @@ def _strptime_time(data_string, format="%a %b %d %H:%M:%S %Y"):
tt = _strptime(data_string, format)[0]
return time.struct_time(tt[:time._STRUCT_TM_ITEMS])
def _strptime_datetime(cls, data_string, format="%a %b %d %H:%M:%S %Y"):
"""Return a class cls instance based on the input string and the
def _strptime_datetime_date(cls, data_string, format="%a %b %d %Y"):
"""Return a date instance based on the input string and the
format string."""
tt, _, _ = _strptime(data_string, format)
args = tt[:3]
return cls(*args)
def _parse_tz(tzname, gmtoff, gmtoff_fraction):
tzdelta = datetime_timedelta(seconds=gmtoff, microseconds=gmtoff_fraction)
if tzname:
return datetime_timezone(tzdelta, tzname)
else:
return datetime_timezone(tzdelta)
def _strptime_datetime_time(cls, data_string, format="%H:%M:%S"):
"""Return a time instance based on the input string and the
format string."""
tt, fraction, gmtoff_fraction = _strptime(data_string, format)
tzname, gmtoff = tt[-2:]
args = tt[3:6] + (fraction,)
if gmtoff is None:
return cls(*args)
else:
tz = _parse_tz(tzname, gmtoff, gmtoff_fraction)
return cls(*args, tz)
def _strptime_datetime_datetime(cls, data_string, format="%a %b %d %H:%M:%S %Y"):
"""Return a datetime instance based on the input string and the
format string."""
tt, fraction, gmtoff_fraction = _strptime(data_string, format)
tzname, gmtoff = tt[-2:]
args = tt[:6] + (fraction,)
if gmtoff is not None:
tzdelta = datetime_timedelta(seconds=gmtoff, microseconds=gmtoff_fraction)
if tzname:
tz = datetime_timezone(tzdelta, tzname)
else:
tz = datetime_timezone(tzdelta)
args += (tz,)
return cls(*args)
if gmtoff is None:
return cls(*args)
else:
tz = _parse_tz(tzname, gmtoff, gmtoff_fraction)
return cls(*args, tz)