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| author | Kees Hink <keeshink@gmail.com> | 2019-10-09 12:08:31 +0200 |
|---|---|---|
| committer | Carlton Gibson <carlton.gibson@noumenal.es> | 2019-10-09 15:51:00 +0200 |
| commit | 4f7ba25e67681efbb67cc4810e919aa7369cbe34 (patch) | |
| tree | be7a456c538640eb9e1b5fa605669b96ee4e25d8 /docs/internals/contributing/writing-code | |
| parent | c22945f4c738f770f4842c6c939690684329a783 (diff) | |
[2.2.x] Fixed #27086 -- Doc'd fix for test suite hang on macOS.
Backport of 5d9cf79baf07fc4aed7ad1b06990532a65378155 from master
Diffstat (limited to 'docs/internals/contributing/writing-code')
| -rw-r--r-- | docs/internals/contributing/writing-code/unit-tests.txt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/docs/internals/contributing/writing-code/unit-tests.txt b/docs/internals/contributing/writing-code/unit-tests.txt index 185c6e4494..a26993141a 100644 --- a/docs/internals/contributing/writing-code/unit-tests.txt +++ b/docs/internals/contributing/writing-code/unit-tests.txt @@ -331,6 +331,20 @@ Ensure you have the latest point release of a :ref:`supported Python version <faq-python-version-support>`, since there are often bugs in earlier versions that may cause the test suite to fail or hang. +On **macOS** (High Sierra and newer versions), you might see this message +logged, after which the tests hang:: + + objc[42074]: +[__NSPlaceholderDate initialize] may have been in progress in + another thread when fork() was called. + +To avoid this set a ``OBJC_DISABLE_INITIALIZE_FORK_SAFETY`` environment +variable, for example:: + + $ OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES ./runtests.py + +Or add ``export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES`` to your shell's +startup file (e.g. ``~/.profile``). + Many test failures with ``UnicodeEncodeError`` ---------------------------------------------- |