upstream/ipython Files · IPython/core/tests/refbug.py

two-process interactive shell progress...

two-process interactive shell progress * execute payloads (e.g. page/pinfo output) are displayed and paged. * aborted replies don't crash frontend. * intermediate iopub is displayed as it comes * wait for kernel to start before printing first prompt. This gets the right number on the first prompt, and also avoids the log output from being drawn after the first prompt. * protect most of the interact block from keyboard interrupts, which could cause weird errors if ctrl-C was held for a while. * separate restart/wait prompt when kernel dies.

Thomas Kluyver - - Load All Authors

File last commit:

r3917:03c097c7


                r5616:7431cd60

Download file

             refbug.py
        
                    47 lines
            
             | 1.5 KiB
            
                | text/x-python
            
             |
                PythonLexer
            
             / IPython / core / tests / refbug.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      """Minimal script to reproduce our nasty reference counting bug.

      The problem is related to https://github.com/ipython/ipython/issues/141

      The original fix for that appeared to work, but John D. Hunter found a

      matplotlib example which, when run twice in a row, would break.  The problem

      were references held by open figures to internals of Tkinter.

      This code reproduces the problem that John saw, without matplotlib.

      This script is meant to be called by other parts of the test suite that call it

      via %run as if it were executed interactively by the user. As of 2011-05-29,

      test_run.py calls it.

      """

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

      # Module imports

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

      import sys

      from IPython.core import ipapi

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

      # Globals

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

      # This needs to be here because nose and other test runners will import

      # this module. Importing this module has potential side effects that we

      # want to prevent.

      if __name__ == '__main__':

          ip = ipapi.get()

          if not '_refbug_cache' in ip.user_ns:

              ip.user_ns['_refbug_cache'] = []

          aglobal = 'Hello'

          def f():

              return aglobal

          cache = ip.user_ns['_refbug_cache']

          cache.append(f)

          def call_f():

              for func in cache:

                  print 'lowercased:',func().lower()

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				"""Minimal script to reproduce our nasty reference counting bug.

				The problem is related to https://github.com/ipython/ipython/issues/141

				The original fix for that appeared to work, but John D. Hunter found a
				matplotlib example which, when run twice in a row, would break. The problem
				were references held by open figures to internals of Tkinter.

				This code reproduces the problem that John saw, without matplotlib.

				This script is meant to be called by other parts of the test suite that call it
				via %run as if it were executed interactively by the user. As of 2011-05-29,
				test_run.py calls it.
				"""

				#-----------------------------------------------------------------------------
				# Module imports
				#-----------------------------------------------------------------------------
				import sys

				from IPython.core import ipapi

				#-----------------------------------------------------------------------------
				# Globals
				#-----------------------------------------------------------------------------

				# This needs to be here because nose and other test runners will import
				# this module. Importing this module has potential side effects that we
				# want to prevent.
				if __name__ == '__main__':

				ip = ipapi.get()

				if not '_refbug_cache' in ip.user_ns:
				ip.user_ns['_refbug_cache'] = []


				aglobal = 'Hello'
				def f():
				return aglobal

				cache = ip.user_ns['_refbug_cache']
				cache.append(f)

				def call_f():
				for func in cache:
				print 'lowercased:',func().lower()