[Python-checkins] [python/cpython] 9273df: bpo-29942: Fix the use of recursion in itertools.c...

[GitHub]

  Branch: refs/heads/3.5
  Home:   https://github.com/python/cpython
  Commit: 9273dfe1800fc7241d69f4d523d748ebd35b3801
      https://github.com/python/cpython/commit/9273dfe1800fc7241d69f4d523d748ebd35b3801
  Author: T. Wouters <thomas at python.org>
  Date:   2017-03-30 (Thu, 30 Mar 2017)

  Changed paths:
    M Lib/test/test_itertools.py
    M Misc/NEWS
    M Modules/itertoolsmodule.c

  Log Message:
  -----------
  bpo-29942: Fix the use of recursion in itertools.chain.from_iterable. (#912)

Fix the use of recursion in itertools.chain.from_iterable. Using recursion
is unnecessary, and can easily cause stack overflows, especially when
building in low optimization modes or with Py_DEBUG enabled.
(cherry picked from commit 5466d4af5fe76ec0a5fbc8a05675287d9e8e9d14)