83 lines
2.6 KiB
Python
83 lines
2.6 KiB
Python
import sys
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import importlib.util
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import regex as re
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from datetime import datetime
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TIME_MATCHER = re.compile(
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r'.*?'
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r'(?P<hour>2[0-3]|[0-1]\d|\d):'
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r'(?P<minute>[0-5]\d|\d):'
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r'(?P<second>6[0-1]|[0-5]\d|\d)'
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r'\.(?P<microsecond>[0-9]{1,6})'
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)
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MS_SEARCHER = re.compile(r'\.(?P<microsecond>[0-9]{1,6})')
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def _exec_module(spec, module):
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if hasattr(spec.loader, "exec_module"):
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spec.loader.exec_module(module)
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else:
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# This can happen before Python 3.10
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# if spec.loader is a zipimporter and the Python runtime is in a zipfile
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code = spec.loader.get_code(module.__name__)
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exec(code, module.__dict__)
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def patch_strptime():
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"""Monkey patching _strptime to avoid problems related with non-english
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locale changes on the system.
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For example, if system's locale is set to fr_FR. Parser won't recognize
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any date since all languages are translated to english dates.
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"""
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_strptime_spec = importlib.util.find_spec('_strptime')
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_strptime = importlib.util.module_from_spec(_strptime_spec)
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_exec_module(_strptime_spec, _strptime)
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sys.modules['strptime_patched'] = _strptime
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_calendar = importlib.util.module_from_spec(_strptime_spec)
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_exec_module(_strptime_spec, _calendar)
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sys.modules['calendar_patched'] = _calendar
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_strptime._getlang = lambda: ('en_US', 'UTF-8')
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_strptime.calendar = _calendar
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_strptime.calendar.day_abbr = [
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'mon', 'tue', 'wed', 'thu', 'fri', 'sat', 'sun'
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]
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_strptime.calendar.day_name = [
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'monday', 'tuesday', 'wednesday', 'thursday',
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'friday', 'saturday', 'sunday'
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]
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_strptime.calendar.month_abbr = [
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'', 'jan', 'feb', 'mar', 'apr', 'may', 'jun',
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'jul', 'aug', 'sep', 'oct', 'nov', 'dec'
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]
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_strptime.calendar.month_name = [
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'', 'january', 'february', 'march', 'april',
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'may', 'june', 'july', 'august', 'september',
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'october', 'november', 'december'
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]
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return _strptime._strptime_time
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__strptime = patch_strptime()
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def strptime(date_string, format):
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obj = datetime(*__strptime(date_string, format)[:-3])
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if '%f' in format:
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try:
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match_groups = TIME_MATCHER.match(date_string).groupdict()
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ms = match_groups['microsecond']
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ms = ms + ((6 - len(ms)) * '0')
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obj = obj.replace(microsecond=int(ms))
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except AttributeError:
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match_groups = MS_SEARCHER.search(date_string).groupdict()
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ms = match_groups['microsecond']
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ms = ms + ((6 - len(ms)) * '0')
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obj = obj.replace(microsecond=int(ms))
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return obj
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