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

Fix bug where 'if 1:' was being added to comment-only code....

Fix bug where 'if 1:' was being added to comment-only code. Found by trying to paste and run this example: http://matplotlib.sourceforge.net/examples/api/collections_demo.html that happened to have indented, comment-only lines of the type: code() # comment code() In these cases, we should *not* try to prepend 'if 1:' to the user's code since that comment by itself isn't executable, and it will cause a compiler IndentationError.

Fernando Perez - - 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.

      """

      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 = map(id,c_refs)

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

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				"""Simple script to show reference holding behavior.

				This is used by a companion test case.
				"""

				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 = map(id,c_refs)

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