bpo-42236: Enhance init and encoding documentation (GH-23109)

Enhance the documentation of the Python startup, filesystem encoding
and error handling, locale encoding. Add a new "Python UTF-8 Mode"
section.

* Add "locale encoding" and "filesystem encoding and error handler"
  to the glossary
* Remove documentation from Include/cpython/initconfig.h: move it to
  Doc/c-api/init_config.rst.
* Doc/c-api/init_config.rst:

  * Document command line options and environment variables
  * Document default values.

* Add a new "Python UTF-8 Mode" section in Doc/library/os.rst.
* Add warnings to Py_DecodeLocale() and Py_EncodeLocale() docs.
* Document how Python selects the filesystem encoding and error
  handler at a single place: PyConfig.filesystem_encoding and
  PyConfig.filesystem_errors.
* PyConfig: move orig_argv member at the right place.
This commit is contained in:
Victor Stinner 2020-11-02 16:49:54 +01:00 committed by GitHub
parent 301822859b
commit 4b9aad4999
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19 changed files with 735 additions and 520 deletions

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@ -182,8 +182,8 @@ For convenience, some of these functions will always return a
.. c:function:: PyObject* PyErr_SetFromErrnoWithFilename(PyObject *type, const char *filename)
Similar to :c:func:`PyErr_SetFromErrnoWithFilenameObject`, but the filename
is given as a C string. *filename* is decoded from the filesystem encoding
(:func:`os.fsdecode`).
is given as a C string. *filename* is decoded from the :term:`filesystem
encoding and error handler`.
.. c:function:: PyObject* PyErr_SetFromWindowsErr(int ierr)
@ -266,7 +266,7 @@ For convenience, some of these functions will always return a
.. c:function:: void PyErr_SyntaxLocationEx(const char *filename, int lineno, int col_offset)
Like :c:func:`PyErr_SyntaxLocationObject`, but *filename* is a byte string
decoded from the filesystem encoding (:func:`os.fsdecode`).
decoded from the :term:`filesystem encoding and error handler`.
.. versionadded:: 3.2
@ -343,7 +343,7 @@ an error value).
Similar to :c:func:`PyErr_WarnExplicitObject` except that *message* and
*module* are UTF-8 encoded strings, and *filename* is decoded from the
filesystem encoding (:func:`os.fsdecode`).
:term:`filesystem encoding and error handler`.
.. c:function:: int PyErr_WarnFormat(PyObject *category, Py_ssize_t stack_level, const char *format, ...)