[Bug 1711724] Re: Segfaults with dict

[Simon Déziel]

On Xenial, before:

$ python3.5 bpo-27945.py 
Segmentation fault

After applying 3.5.2-2ubuntu0~16.04.2:

$ python3.5 bpo-27945.py 
Traceback (most recent call last):
  File "bpo-27945.py", line 7, in <module>
    for result in d.items():
RuntimeError: dictionary changed size during iteration


** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial

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https://bugs.launchpad.net/bugs/1711724

Title:
  Segfaults with dict

Status in python3.5 package in Ubuntu:
  Invalid
Status in python3.6 package in Ubuntu:
  Fix Released
Status in python3.5 source package in Xenial:
  Fix Committed
Status in python3.6 source package in Xenial:
  Invalid
Status in python3.5 source package in Zesty:
  In Progress
Status in python3.6 source package in Zesty:
  Fix Committed

Bug description:
  In certain situations python3.5 will segfault. This bug is confirmed
  and fixed upstream in Python 3.5.4

  http://bugs.python.org/issue27945

  [Test Case]
  1. download attached bpo-27945.py
  2. run: python3.5 bpo-27945.py

  If it does not segfault, the bug is fixed.

  [Regression Potential]
  The fix has been shown to introduce a minor performance hit for dictionaries in general.

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