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# encoding: utf-8

"""

Timezone utilities

Just UTC-awareness right now

"""

#-----------------------------------------------------------------------------

# Copyright (C) 2013 The IPython Development Team

#

# Distributed under the terms of the BSD License. The full license is in

# the file COPYING, distributed as part of this software.

#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------

# Imports

#-----------------------------------------------------------------------------

from datetime import tzinfo, timedelta, datetime

#-----------------------------------------------------------------------------

# Code

#-----------------------------------------------------------------------------

# constant for zero offset

ZERO = timedelta(0)

class tzUTC(tzinfo):

"""tzinfo object for UTC (zero offset)"""

def utcoffset(self, d):

return ZERO

def dst(self, d):

return ZERO

UTC = tzUTC()

def utc_aware(unaware):

"""decorator for adding UTC tzinfo to datetime's utcfoo methods"""

def utc_method(*args, **kwargs):

dt = unaware(*args, **kwargs)

return dt.replace(tzinfo=UTC)

return utc_method

utcfromtimestamp = utc_aware(datetime.utcfromtimestamp)

utcnow = utc_aware(datetime.utcnow)