| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748 |
- """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.
- """
- from __future__ import print_function
- #-----------------------------------------------------------------------------
- # Module imports
- #-----------------------------------------------------------------------------
- import sys
- from IPython import get_ipython
- #-----------------------------------------------------------------------------
- # 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 = get_ipython()
- 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())
|
