44 lines
729 B
Python
44 lines
729 B
Python
|
from datetime import timedelta
|
||
|
|
|
||
|
|
from dateutil import tz
|
||
|
|
|
||
|
|
UTC = tz.UTC
|
||
|
|
|
||
|
|
|
||
|
|
def get_timezone(key):
|
||
|
|
if not key:
|
||
|
|
raise KeyError("Unknown time zone: %s" % key)
|
||
|
|
|
||
|
|
try:
|
||
|
|
rv = tz.gettz(key)
|
||
|
|
except Exception:
|
||
|
|
rv = None
|
||
|
|
|
||
|
|
if rv is None or not isinstance(rv, (tz.tzutc, tz.tzfile)):
|
||
|
|
raise KeyError("Unknown time zone: %s" % key)
|
||
|
|
|
||
|
|
return rv
|
||
|
|
|
||
|
|
|
||
|
|
def get_timezone_file(f, key=None):
|
||
|
|
return tz.tzfile(f)
|
||
|
|
|
||
|
|
|
||
|
|
def get_fixed_offset_zone(offset):
|
||
|
|
return tz.tzoffset(None, timedelta(minutes=offset))
|
||
|
|
|
||
|
|
|
||
|
|
def is_ambiguous(dt):
|
||
|
|
return tz.datetime_ambiguous(dt)
|
||
|
|
|
||
|
|
|
||
|
|
def is_imaginary(dt):
|
||
|
|
return not tz.datetime_exists(dt)
|
||
|
|
|
||
|
|
|
||
|
|
enfold = tz.enfold
|
||
|
|
|
||
|
|
|
||
|
|
def get_fold(dt):
|
||
|
|
return getattr(dt, "fold", 0)
|