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bpo-29240: PEP 540: Add a new UTF-8 Mode (#855)
* Add -X utf8 command line option, PYTHONUTF8 environment variable and a new sys.flags.utf8_mode flag. * If the LC_CTYPE locale is "C" at startup: enable automatically the UTF-8 mode. * Add _winapi.GetACP(). encodings._alias_mbcs() now calls _winapi.GetACP() to get the ANSI code page * locale.getpreferredencoding() now returns 'UTF-8' in the UTF-8 mode. As a side effect, open() now uses the UTF-8 encoding by default in this mode. * Py_DecodeLocale() and Py_EncodeLocale() now use the UTF-8 encoding in the UTF-8 Mode. * Update subprocess._args_from_interpreter_flags() to handle -X utf8 * Skip some tests relying on the current locale if the UTF-8 mode is enabled. * Add test_utf8mode.py. * _Py_DecodeUTF8_surrogateescape() gets a new optional parameter to return also the length (number of wide characters). * pymain_get_global_config() and pymain_set_global_config() now always copy flag values, rather than only copying if the new value is greater than the old value.
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27 changed files with 598 additions and 183 deletions
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@ -29,6 +29,9 @@ const char *Py_FileSystemDefaultEncoding = NULL; /* set by initfsencoding() */
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int Py_HasFileSystemDefaultEncoding = 0;
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#endif
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const char *Py_FileSystemDefaultEncodeErrors = "surrogateescape";
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/* UTF-8 mode (PEP 540): if non-zero, use the UTF-8 encoding, and change stdin
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and stdout error handler to "surrogateescape". */
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int Py_UTF8Mode = 0;
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_Py_IDENTIFIER(__builtins__);
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_Py_IDENTIFIER(__dict__);
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