forked from rc/aircox
64 lines
1.7 KiB
Python
Executable File
64 lines
1.7 KiB
Python
Executable File
import datetime
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import django.utils.timezone as tz
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def date_range(date, delta=None, **delta_kwargs):
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"""
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Return a range of provided date such as `[date-delta, date+delta]`.
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:param date: the reference date
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:param delta: timedelta
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:param \**delta_kwargs: timedelta init arguments
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Return a datetime range for a given day, as:
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```(date, 0:0:0:0; date, 23:59:59:999)```.
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"""
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delta = tz.timedelta(**delta_kwargs) if delta is None else delta
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return [date - delta, date + delta]
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def cast_date(date, into=datetime.date):
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"""
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Cast a given date into the provided class' instance. Make datetime
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aware of timezone.
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"""
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date = into(date.year, date.month, date.day)
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return tz.make_aware(date) if issubclass(into, tz.datetime) else date
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def date_or_default(date, into=None):
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"""
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Return date if not None, otherwise return now. Cast result into provided
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type if any.
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"""
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date = date if date is not None else datetime.date.today() \
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if into is not None and issubclass(into, datetime.date) else tz.now()
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if into is not None:
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date = cast_date(date, into)
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if isinstance(date, tz.datetime) and not tz.is_aware(date):
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date = tz.make_aware(date)
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return date
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def to_timedelta(time):
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"""
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Transform a datetime or a time instance to a timedelta,
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only using time info
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"""
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return datetime.timedelta(
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hours=time.hour,
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minutes=time.minute,
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seconds=time.second
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)
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def seconds_to_time(seconds):
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"""
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Seconds to datetime.time
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"""
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minutes, seconds = divmod(seconds, 60)
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hours, minutes = divmod(minutes, 60)
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return datetime.time(hour=hours, minute=minutes, second=seconds)
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