[New-bugs-announce] [issue21811] Anticipate fixes to 3.x and 2.7 for OS X 10.10 Yosemite support

Ned Deily report at bugs.python.org
Fri Jun 20 00:24:11 CEST 2014


New submission from Ned Deily:

Apple recently announced an upcoming public beta and anticipated fall release of the next version of OS X, 10.10 Yosemite.  As usual, developer previews of 10.10 have been made under non-disclosure since the exact details of 10.10 may change prior to the final release.  However, by inspection, there are definitely some issues in Python that will need to be addressed for 10.10 and beyond.  There are a number of places within the cpython code base where decisions are made based on either the running system version or the OS X ABI (e.g. the value of MACOSX_DEPLOYMENT_TARGET) that the interpreter was built with or is being built with.  Most of the current tests do string comparisons of these values which will not work properly with a two-digit version number ('10.10' < '10.9' --> True).  At a minimum, this will likely have the following effects:

1. When running current 3.4.1 and 2.7.7 binary installers on 10.10, building C extension modules will likely result in an incorrect universal platform name, for example, "x86_64" instead of "intel", and that could affect extension module file names and wheel or egg names.

2. In addition, when building Python on 10.10, standard library and third-party extension modules may be built with obsolete link options ("-bundle -bundle_loader python" rather than "-bundle -undefined dynamic_lookup") and some extension module builds may fail as a result.

3. Various tests in the Python test suite may fail, including test_distutils, test__osx_support, and test_sysconfig.

Note that versions of Python older than 3.4 and 2.7 are no longer eligible for bug fixes under python-dev policy but are likely to have similar and/or additional problems.  And, again, there may be other issues identified once 10.10 is released in its final form.

----------
assignee: ned.deily
components: Build, Macintosh, Tests
messages: 221042
nosy: ned.deily
priority: normal
severity: normal
status: open
title: Anticipate fixes to 3.x and 2.7 for OS X 10.10 Yosemite support
versions: Python 2.7, Python 3.4, Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21811>
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