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

Fix inconsistencies in parallel direct interface doc...

Fix inconsistencies in parallel direct interface doc Running through the entire page would produce errors, as different variable names were used, or, in the case of the %px a=b example, not throw an exception because a and b actually were defined in an earlier example. The following fixes allow one to follow through the entire page and experience the expected behaviors

Fernando Perez - - Load All Authors

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             importstring.py
        
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             / IPython / utils / importstring.py
          
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      # encoding: utf-8

      """

      A simple utility to import something by its string name.

      Authors:

      * Brian Granger

      """

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

      #  Copyright (C) 2008-2011  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.

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

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

      # Functions and classes

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

      def import_item(name):

          """Import and return ``bar`` given the string ``foo.bar``.

          Calling ``bar = import_item("foo.bar")`` is the functional equivalent of

          executing the code ``from foo import bar``.

          Parameters

          ----------

          name : string

            The fully qualified name of the module/package being imported.

          Returns

          -------

          mod : module object

             The module that was imported.

          """

          parts = name.rsplit('.', 1)

          if len(parts) == 2:

              # called with 'foo.bar....'

              package, obj = parts

              module = __import__(package, fromlist=[obj])

              try:

                  pak = module.__dict__[obj]

              except KeyError:

                  raise ImportError('No module named %s' % obj)

              return pak

          else:

              # called with un-dotted string

              return __import__(parts[0])

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				# encoding: utf-8
				"""
				A simple utility to import something by its string name.

				Authors:

				* Brian Granger
				"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008-2011 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.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Functions and classes
				#-----------------------------------------------------------------------------

				def import_item(name):
				"""Import and return ``bar`` given the string ``foo.bar``.

				Calling ``bar = import_item("foo.bar")`` is the functional equivalent of
				executing the code ``from foo import bar``.

				Parameters
				----------
				name : string
				The fully qualified name of the module/package being imported.

				Returns
				-------
				mod : module object
				The module that was imported.
				"""

				parts = name.rsplit('.', 1)
				if len(parts) == 2:
				# called with 'foo.bar....'
				package, obj = parts
				module = __import__(package, fromlist=[obj])
				try:
				pak = module.__dict__[obj]
				except KeyError:
				raise ImportError('No module named %s' % obj)
				return pak
				else:
				# called with un-dotted string
				return __import__(parts[0])