upstream/ipython Files · docs/examples/tests/heartbeat/hb_gil.py

Backport PR : Fix: longest_substr([]) -> ''...

Backport PR : Fix: longest_substr([]) -> '' Previously the algorithm used to find the longest common starting substring unintentionally raised an error when it was called on an empty list. This should fix the issue of an error being raised when running %paste on an empty clipboard (#2252).

Matthias BUSSONNIER - - Load All Authors

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      """

      Run this script in the qtconsole with one of:

          %load hb_gil.py

      or

          %run hb_gil.py

      Holding the GIL for too long could disrupt the heartbeat.

      See Issue #1260: https://github.com/ipython/ipython/issues/1260

      """

      import sys

      import time

      from cython import inline

      def gilsleep(t):

          """gil-holding sleep with cython.inline"""

          code = '\n'.join([

              'from posix cimport unistd',

              'unistd.sleep(t)',

          ])

          while True:

              inline(code, quiet=True, t=t)

              print(time.time())

              sys.stdout.flush() # this is important

      gilsleep(5)

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				"""
				Run this script in the qtconsole with one of:

				%load hb_gil.py

				or
				%run hb_gil.py

				Holding the GIL for too long could disrupt the heartbeat.

				See Issue #1260: https://github.com/ipython/ipython/issues/1260

				"""

				import sys
				import time

				from cython import inline

				def gilsleep(t):
				"""gil-holding sleep with cython.inline"""
				code = '\n'.join([
				'from posix cimport unistd',
				'unistd.sleep(t)',
				])
				while True:
				inline(code, quiet=True, t=t)
				print(time.time())
				sys.stdout.flush() # this is important

				gilsleep(5)