upstream/ipython Files · IPython/utils/tests/test_decorators.py

coalesce stream output in the notebook...

coalesce stream output in the notebook This merges consecutive outputs on one stream into a single output. Essentially, it applies the same merging that we do visually to the content stored in the notebook document. This results in a massive performance improvement in load-time and storage size for notebooks that have many calls to `sys.stdout.flush()`.

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             test_decorators.py
        
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      from IPython.utils import decorators

      def test_flag_calls():

          @decorators.flag_calls

          def f():

              pass

          assert not f.called

          f()

          assert f.called

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				from IPython.utils import decorators

				def test_flag_calls():
				@decorators.flag_calls
				def f():
				pass

				assert not f.called
				f()
				assert f.called