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* 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.
46 lines
1.8 KiB
Python
46 lines
1.8 KiB
Python
"""A minimal subset of the locale module used at interpreter startup
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(imported by the _io module), in order to reduce startup time.
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Don't import directly from third-party code; use the `locale` module instead!
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"""
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import sys
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import _locale
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if sys.platform.startswith("win"):
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def getpreferredencoding(do_setlocale=True):
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if sys.flags.utf8_mode:
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return 'UTF-8'
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return _locale._getdefaultlocale()[1]
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else:
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try:
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_locale.CODESET
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except AttributeError:
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if hasattr(sys, 'getandroidapilevel'):
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# On Android langinfo.h and CODESET are missing, and UTF-8 is
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# always used in mbstowcs() and wcstombs().
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def getpreferredencoding(do_setlocale=True):
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return 'UTF-8'
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else:
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def getpreferredencoding(do_setlocale=True):
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if sys.flags.utf8_mode:
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return 'UTF-8'
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# This path for legacy systems needs the more complex
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# getdefaultlocale() function, import the full locale module.
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import locale
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return locale.getpreferredencoding(do_setlocale)
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else:
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def getpreferredencoding(do_setlocale=True):
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assert not do_setlocale
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if sys.flags.utf8_mode:
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return 'UTF-8'
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result = _locale.nl_langinfo(_locale.CODESET)
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if not result and sys.platform == 'darwin':
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# nl_langinfo can return an empty string
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# when the setting has an invalid value.
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# Default to UTF-8 in that case because
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# UTF-8 is the default charset on OSX and
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# returning nothing will crash the
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# interpreter.
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result = 'UTF-8'
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return result
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