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

Avoid calling the input transformer twice in the execution stack....

Avoid calling the input transformer twice in the execution stack. This should allow to register input transformers that have side effects, at least in Notebooks. Right now there are sill multiple calls which may happen in the terminal on execution requests.

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      # encoding: utf-8

      """

      Utilities for version comparison

      It is a bit ridiculous that we need these.

      """

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

      #  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 distutils.version import LooseVersion

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

      # Code

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

      def check_version(v, check):

          """check version string v >= check

          If dev/prerelease tags result in TypeError for string-number comparison,

          it is assumed that the dependency is satisfied.

          Users on dev branches are responsible for keeping their own packages up to date.

          """

          try:

              return LooseVersion(v) >= LooseVersion(check)

          except TypeError:

              return True

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				# encoding: utf-8
				"""
				Utilities for version comparison

				It is a bit ridiculous that we need these.
				"""

				#-----------------------------------------------------------------------------
				# 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 distutils.version import LooseVersion

				#-----------------------------------------------------------------------------
				# Code
				#-----------------------------------------------------------------------------

				def check_version(v, check):
				"""check version string v >= check

				If dev/prerelease tags result in TypeError for string-number comparison,
				it is assumed that the dependency is satisfied.
				Users on dev branches are responsible for keeping their own packages up to date.
				"""
				try:
				return LooseVersion(v) >= LooseVersion(check)
				except TypeError:
				return True