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authorVictor Stinner <victor.stinner@gmail.com>2017-12-13 12:29:09 +0100
committerGitHub <noreply@github.com>2017-12-13 12:29:09 +0100
commit91106cd9ff2f321c0f60fbaa09fd46c80aa5c266 (patch)
treeff002e0532736a97f3ddd367c1491e7b04611816 /Doc/using
parentc3e070f84931c847d1b35e7fb36aa71edd6215f6 (diff)
downloadcpython-git-91106cd9ff2f321c0f60fbaa09fd46c80aa5c266.tar.gz
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.
Diffstat (limited to 'Doc/using')
-rw-r--r--Doc/using/cmdline.rst13
1 files changed, 12 insertions, 1 deletions
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index e32f77e7ff..5cb9071770 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -439,6 +439,9 @@ Miscellaneous options
* Set the :attr:`~sys.flags.dev_mode` attribute of :attr:`sys.flags` to
``True``
+ * ``-X utf8`` enables the UTF-8 mode, whereas ``-X utf8=0`` disables the
+ UTF-8 mode.
+
It also allows passing arbitrary values and retrieving them through the
:data:`sys._xoptions` dictionary.
@@ -455,7 +458,7 @@ Miscellaneous options
The ``-X showalloccount`` option.
.. versionadded:: 3.7
- The ``-X importtime`` and ``-X dev`` options.
+ The ``-X importtime``, ``-X dev`` and ``-X utf8`` options.
Options you shouldn't use
@@ -816,6 +819,14 @@ conflict.
.. versionadded:: 3.7
+.. envvar:: PYTHONUTF8
+
+ If set to ``1``, enable the UTF-8 mode. If set to ``0``, disable the UTF-8
+ mode. Any other non-empty string cause an error.
+
+ .. versionadded:: 3.7
+
+
Debug-mode variables
~~~~~~~~~~~~~~~~~~~~