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aaronmk
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# Date/time manipulation
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import datetime
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aaronmk
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import dateutil.tz
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817
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aaronmk
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import time
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1040
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aaronmk
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utc = dateutil.tz.tzutc()
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local = dateutil.tz.tzlocal()
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817
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aaronmk
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1040
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aaronmk
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def naive2utc(datetime_):
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assert datetime_.tzinfo == None
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return datetime_.replace(tzinfo=utc)
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817
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aaronmk
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1040
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aaronmk
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def aware2local(datetime_): return datetime_.astimezone(local)
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def from_timestamp(utc_timestamp):
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return naive2utc(datetime.datetime.utcfromtimestamp(utc_timestamp))
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aaronmk
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def timestamp(datetime_):
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datetime_ = aware2local(datetime_)
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return int(time.mktime(datetime_.timetuple())) + datetime_.microsecond/1e6
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1040
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aaronmk
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epoch = from_timestamp(0)
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aaronmk
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def total_seconds(timedelta_): return timestamp(epoch + timedelta_)
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aaronmk
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def now(): return datetime.datetime.now(utc)
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aaronmk
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def strftime(format, datetime_):
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'''datetime.strftime() can't handle years before 1900'''
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aaronmk
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return (datetime_.replace(year=epoch.year, day=1).strftime(format
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aaronmk
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.replace('%Y', '%%Y')
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.replace('%d', '%%d')
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)
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.replace('%Y', '%04d' % datetime_.year)
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.replace('%d', '%02d' % datetime_.day)
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)
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1040
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aaronmk
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1263
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aaronmk
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def strtotime(str_, default=epoch):
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import dateutil.parser
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return dateutil.parser.parse(str_, default=default)
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