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bpo-29240, bpo-32030: Py_Main() re-reads config if encoding changes (#4899)

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bpo-29240, bpo-32030: If the encoding change (C locale coerced or
UTF-8 Mode changed), Py_Main() now reads again the configuration with
the new encoding.

Changes:

* Add _Py_UnixMain() called by main().
* Rename pymain_free_pymain() to pymain_clear_pymain(), it can now be
  called multipled times.
* Rename pymain_parse_cmdline_envvars() to pymain_read_conf().
* Py_Main() now clears orig_argc and orig_argv at exit.
* Remove argv_copy2, Py_Main() doesn't modify argv anymore. There is
  no need anymore to get two copies of the wchar_t** argv.
* _PyCoreConfig: add coerce_c_locale and coerce_c_locale_warn.
* Py_UTF8Mode is now initialized to -1.
* Locale coercion (PEP 538) now respects -I and -E options.
This commit is contained in:
Victor Stinner 2017-12-16 04:54:22 +01:00 • committed by GitHub
parent e796b2fe26
commit 9454060e84
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12 changed files with 325 additions and 215 deletions
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Doc/using/cmdline.rst
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@ -779,9 +779,7 @@ conflict.
If set to the value ``0``, causes the main Python command line application
to skip coercing the legacy ASCII-based C locale to a more capable UTF-8
based alternative. Note that this setting is checked even when the
:option:`-E` or :option:`-I` options are used, as it is handled prior to
the processing of command line options.
based alternative.
If this variable is *not* set, or is set to a value other than ``0``, and
the current locale reported for the ``LC_CTYPE`` category is the default