upstream/ipython Files · IPython/core/macro.py

Move crash handling to the application level and simplify class structure....

Move crash handling to the application level and simplify class structure. Starting to try to take real advantage of the refactoring, to have generic crash handling. This also lets us initialize the app without needing all the self.attempt() wrappers, since now there's a good system-wide crash handler at the app level (not inside the shell instance). I didn't yet remove the attempt() method because we may have occasional uses for it (we still do, but in one place only). I also removed some extra class layers that weren't quite needed. Creating classes solely for the purpose of passing parameters makes the code (IMO) harder to understand, I kept getting lost in parts of the class hierarchy. I think these changes provide the same flexibility but with easier to follow code (less things to remember, basically). What I tried to do was to use argument passing instead of inheritance for all cases I saw where the inheritance wasn't really adding new functionality. In some cases, this actually allowed me to remove methods that were effectively duplicated in the subclasses.

Brian Granger - - Load All Authors

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      """Support for interactive macros in IPython"""

      #*****************************************************************************

      #       Copyright (C) 2001-2005 Fernando Perez <fperez@colorado.edu>

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #*****************************************************************************

      from IPython.utils.genutils import Term

      from IPython.core.autocall import IPyAutocall

      class Macro(IPyAutocall):

          """Simple class to store the value of macros as strings.

          Macro is just a callable that executes a string of IPython

          input when called.

          Args to macro are available in _margv list if you need them.

          """

          def __init__(self,data):

              # store the macro value, as a single string which can be evaluated by

              # runlines()

              self.value = ''.join(data).rstrip()+'\n'

          def __str__(self):

              return self.value

          def __repr__(self):

              return 'IPython.macro.Macro(%s)' % repr(self.value)

          def __call__(self,*args):

              Term.cout.flush()

              self._ip.user_ns['_margv'] = args

              self._ip.runlines(self.value)

          def __getstate__(self):

              """ needed for safe pickling via %store """

              return {'value': self.value}

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				"""Support for interactive macros in IPython"""

				#*****************************************************************************
				# Copyright (C) 2001-2005 Fernando Perez <fperez@colorado.edu>
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#*****************************************************************************

				from IPython.utils.genutils import Term
				from IPython.core.autocall import IPyAutocall

				class Macro(IPyAutocall):
				"""Simple class to store the value of macros as strings.

				Macro is just a callable that executes a string of IPython
				input when called.

				Args to macro are available in _margv list if you need them.
				"""

				def __init__(self,data):

				# store the macro value, as a single string which can be evaluated by
				# runlines()
				self.value = ''.join(data).rstrip()+'\n'

				def __str__(self):
				return self.value

				def __repr__(self):
				return 'IPython.macro.Macro(%s)' % repr(self.value)

				def __call__(self,*args):
				Term.cout.flush()
				self._ip.user_ns['_margv'] = args
				self._ip.runlines(self.value)

				def __getstate__(self):
				""" needed for safe pickling via %store """
				return {'value': self.value}