https://hg.python.org/cpython/rev/bd4dc351d670 changeset: 93342:bd4dc351d670 branch: 2.7 parent: 93338:28d18fdc52c4 user: Ned Deily <nad@acm.org> date: Sat Nov 01 19:26:45 2014 -0700 summary: Issue #22770: Prevent some Tk segfaults on OS X when running gui tests. When running tests in subprocesses with the regrtest -j option, a bug in Cocoa Tk can result in a Tcl segfault. Avoid the problem by forcing Tk to fully initialize as an OS X gui process before destroying the Tcl instance and creating another. (Original patch by Serhiy Storchaka) files: Lib/test/test_support.py | 5 ++--- Misc/NEWS | 2 ++ 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/Lib/test/test_support.py b/Lib/test/test_support.py --- a/Lib/test/test_support.py +++ b/Lib/test/test_support.py @@ -326,12 +326,11 @@ reason = "cannot run without OS X gui process" # check on every platform whether tkinter can actually do anything - # but skip the test on OS X because it can cause segfaults in Cocoa Tk - # when running regrtest with the -j option (multiple threads/subprocesses) - if (not reason) and (sys.platform != 'darwin'): + if not reason: try: from Tkinter import Tk root = Tk() + root.update() root.destroy() except Exception as e: err_string = str(e) diff --git a/Misc/NEWS b/Misc/NEWS --- a/Misc/NEWS +++ b/Misc/NEWS @@ -277,6 +277,8 @@ - Issue #21976: Fix test_ssl to accept LibreSSL version strings. Thanks to William Orr. +- Issue #22770: Prevent some Tk segfaults on OS X when running gui tests. + Build ----- -- Repository URL: https://hg.python.org/cpython