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

Backport PR : qtconsole: wrap argument list in tooltip to match width of text body...

Backport PR : qtconsole: wrap argument list in tooltip to match width of text body previously, a function with a long argument list would produce a very wide tooltip, hurting readability. Since the width of the docstring body is chosen by the developer whereas the formatting of the argument list is currently not, it's reasonable to wrap the argument list width to the maximum of a) 80 characters, or b) maximum length of a line in the docstring body. This improves readability, without unduly affecting the appearence of the docstring body itself. closes I'm happy to add any additional tests or make any changes required to get this merged.

Fernando Perez - - Load All Authors

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             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."""

          package = '.'.join(name.split('.')[0:-1])

          obj = name.split('.')[-1]

          # Note: the original code for this was the following.  We've left it

          # visible for now in case the new implementation shows any problems down

          # the road, to make it easier on anyone looking for a problem.  This code

          # should be removed once we're comfortable we didn't break anything.

          ## execString = 'from %s import %s' % (package, obj)

          ## try:

          ##     exec execString

          ## except SyntaxError:

          ##     raise ImportError("Invalid class specification: %s" % name)

          ## exec 'temp = %s' % obj

          ## return temp

          if package:

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

              try:

                  pak = module.__dict__[obj]

              except KeyError:

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

              return pak

          else:

              return __import__(obj)

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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."""
				package = '.'.join(name.split('.')[0:-1])
				obj = name.split('.')[-1]

				# Note: the original code for this was the following. We've left it
				# visible for now in case the new implementation shows any problems down
				# the road, to make it easier on anyone looking for a problem. This code
				# should be removed once we're comfortable we didn't break anything.

				## execString = 'from %s import %s' % (package, obj)
				## try:
				## exec execString
				## except SyntaxError:
				## raise ImportError("Invalid class specification: %s" % name)
				## exec 'temp = %s' % obj
				## return temp

				if package:
				module = __import__(package,fromlist=[obj])
				try:
				pak = module.__dict__[obj]
				except KeyError:
				raise ImportError('No module named %s' % obj)
				return pak
				else:
				return __import__(obj)