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

check if SIGINT handler is callable before triggering it...

check if SIGINT handler is callable before triggering it an apparent Python bug can cause `int not callable` when SIGINT handler is SIG_IGN It's a bit baffling that this behavior appears to be dependent on pyzmq version in IPython's own use, but the bug can be reproduced in a tiny amount of pure Python without zmq or IPython.

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             codeutil.py
        
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      # encoding: utf-8

      """Utilities to enable code objects to be pickled.

      Any process that import this module will be able to pickle code objects.  This

      includes the func_code attribute of any function.  Once unpickled, new

      functions can be built using new.function(code, globals()).  Eventually

      we need to automate all of this so that functions themselves can be pickled.

      Reference: A. Tremols, P Cogolo, "Python Cookbook," p 302-305

      """

      # Copyright (c) IPython Development Team.

      # Distributed under the terms of the Modified BSD License.

      import sys

      import types

      try:

          import copyreg  # Py 3

      except ImportError:

          import copy_reg as copyreg  # Py 2

      def code_ctor(*args):

          return types.CodeType(*args)

      def reduce_code(co):

          args =  [co.co_argcount, co.co_nlocals, co.co_stacksize,

                  co.co_flags, co.co_code, co.co_consts, co.co_names,

                  co.co_varnames, co.co_filename, co.co_name, co.co_firstlineno,

                  co.co_lnotab, co.co_freevars, co.co_cellvars]

          if sys.version_info[0] >= 3:

              args.insert(1, co.co_kwonlyargcount)

          return code_ctor, tuple(args)

      copyreg.pickle(types.CodeType, reduce_code)

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				# encoding: utf-8

				"""Utilities to enable code objects to be pickled.

				Any process that import this module will be able to pickle code objects. This
				includes the func_code attribute of any function. Once unpickled, new
				functions can be built using new.function(code, globals()). Eventually
				we need to automate all of this so that functions themselves can be pickled.

				Reference: A. Tremols, P Cogolo, "Python Cookbook," p 302-305
				"""

				# Copyright (c) IPython Development Team.
				# Distributed under the terms of the Modified BSD License.

				import sys
				import types
				try:
				import copyreg # Py 3
				except ImportError:
				import copy_reg as copyreg # Py 2

				def code_ctor(*args):
				return types.CodeType(*args)

				def reduce_code(co):
				args = [co.co_argcount, co.co_nlocals, co.co_stacksize,
				co.co_flags, co.co_code, co.co_consts, co.co_names,
				co.co_varnames, co.co_filename, co.co_name, co.co_firstlineno,
				co.co_lnotab, co.co_freevars, co.co_cellvars]
				if sys.version_info[0] >= 3:
				args.insert(1, co.co_kwonlyargcount)
				return code_ctor, tuple(args)

				copyreg.pickle(types.CodeType, reduce_code)