upstream/ipython Files · IPython/nbformat/v2/tests/test_nbpy.py

Prevent qtconsole frontend freeze on lots of output....

Prevent qtconsole frontend freeze on lots of output. The output from the kernel is now clipped to last `buffer_size` before displaying and a timer is used to flush the pending output text instead of attempting to display text on every stream output from kernel. The timer interval is adjusted based on actual time taken to append a screenful of text to widget. This throttles the widget repaints and avoids choking the Qt event loop leaving time to handle other Qt events. Test cases: In [1]: for i in xrange(1000000): print i In [2]: range(100000) Without this commit the first input causes the qtconsole frontend to freeze, not responding to `Ctrl+C`.

Bradley M. Froehle - - Load All Authors

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             test_nbpy.py
        
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      from unittest import TestCase

      from ..nbbase import (

          NotebookNode,

          new_code_cell, new_text_cell, new_worksheet, new_notebook

      )

      from ..nbpy import reads, writes

      from .nbexamples import nb0, nb0_py

      class TestPy(TestCase):

          def test_write(self):

              s = writes(nb0)

              self.assertEqual(s,nb0_py)

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				from unittest import TestCase

				from ..nbbase import (
				NotebookNode,
				new_code_cell, new_text_cell, new_worksheet, new_notebook
				)

				from ..nbpy import reads, writes
				from .nbexamples import nb0, nb0_py


				class TestPy(TestCase):

				def test_write(self):
				s = writes(nb0)
				self.assertEqual(s,nb0_py)