upstream/ipython Files · IPython/utils/tz.py

Make comm manager (mostly) independent of InteractiveShell...

Make comm manager (mostly) independent of InteractiveShell This makes it possible to use comms from wrapper kernels, without instantiating the full IPython shell machinery. The one remaining place where we need a reference to shell is to fire pre_execute and post_execute hooks (which are needed to get mpl figures right). This is a pure IPythonism, that it should be safe to ignore if shell is not set.

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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)

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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)