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load kwarg traits before loading config...
load kwarg traits before loading config in `Configurable.__init__` avoids problems in the new init of traitlets that skips `_trait_default` if specified in kwargs, which means really nothing should be done before `HasTraits.__init__` has been called. This does mean that such values are assigned twice. Typically, this will have no effect, except when a value is set by both config and kwarg.

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tz.py
46 lines | 1.3 KiB | text/x-python | PythonLexer
# 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)