bpo-38317: Fix PyConfig.warnoptions priority (GH-16478)

Fix warnings options priority: PyConfig.warnoptions has the highest
priority, as stated in the PEP 587.

* Document options order in PyConfig.warnoptions documentation.
* Make PyWideStringList_INIT macro private: replace "Py" prefix
  with "_Py".
* test_embed: add test_init_warnoptions().
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Victor Stinner 2019-09-30 01:40:17 +02:00 committed by GitHub
parent 58498bc717
commit fb4ae152a9
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10 changed files with 185 additions and 51 deletions

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@ -704,7 +704,13 @@ PyConfig
.. c:member:: PyWideStringList warnoptions
Options of the :mod:`warnings` module to build warnings filters.
:data:`sys.warnoptions`: options of the :mod:`warnings` module to build
warnings filters: lowest to highest priority.
The :mod:`warnings` module adds :data:`sys.warnoptions` in the reverse
order: the last :c:member:`PyConfig.warnoptions` item becomes the first
item of :data:`warnings.filters` which is checked first (highest
priority).
.. c:member:: int write_bytecode