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

restart channels on kernel restart...

restart channels on kernel restart generally not necessary, but sometimes the kernel connection can be dirty. We have only seen this by starting a qtconsole via %qtconsole, then killing the kernel, at which point the original notebook's connection (at the zmq level) is never restored to the new kernel at the same endpoint. It's weird, and probably a zmq bug, but a simple reconnect seems to solve it.

Takafumi Arakaki - - Load All Authors

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      #-----------------------------------------------------------------------------

      #  Copyright (C) 2012-  The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

      #-----------------------------------------------------------------------------

      import os

      from IPython.utils.tempdir import NamedFileInTemporaryDirectory

      def test_named_file_in_temporary_directory():

          with NamedFileInTemporaryDirectory('filename') as file:

              name = file.name

              assert not file.closed

              assert os.path.exists(name)

              file.write(b'test')

          assert file.closed

          assert not os.path.exists(name)

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				#-----------------------------------------------------------------------------
				# Copyright (C) 2012- The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				import os

				from IPython.utils.tempdir import NamedFileInTemporaryDirectory


				def test_named_file_in_temporary_directory():
				with NamedFileInTemporaryDirectory('filename') as file:
				name = file.name
				assert not file.closed
				assert os.path.exists(name)
				file.write(b'test')
				assert file.closed
				assert not os.path.exists(name)