upstream/ipython Files · IPython/testing/plugin/show_refs.py

Remove EventManager reset methods, because they violate encapsulation....

Remove EventManager reset methods, because they violate encapsulation. The whole idea of the EventManager is that you can register hooks without worrying about what hooks other pieces of code might be registering. The reset methods violate this separation of concerns, since they will blow away everyone else's hooks too. (See gh-6680 for an example of this breaking things.) Since there is never any safe way to use them, we simply remove them entirely.

Thomas Kluyver - - Load All Authors

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             show_refs.py
        
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      """Simple script to show reference holding behavior.

      This is used by a companion test case.

      """

      from __future__ import print_function

      import gc

      class C(object):

         def __del__(self):

            pass

            #print 'deleting object...'  # dbg

      if __name__ == '__main__':

         c = C()

         c_refs = gc.get_referrers(c)

         ref_ids = list(map(id,c_refs))

         print('c referrers:',list(map(type,c_refs)))

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				"""Simple script to show reference holding behavior.

				This is used by a companion test case.
				"""
				from __future__ import print_function

				import gc

				class C(object):
				def __del__(self):
				pass
				#print 'deleting object...' # dbg

				if __name__ == '__main__':
				c = C()

				c_refs = gc.get_referrers(c)
				ref_ids = list(map(id,c_refs))

				print('c referrers:',list(map(type,c_refs)))