@@ -97,7 +97,7 @@ PyWideStringList
9797 If *index * is greater than or equal to *list * length, append *item * to
9898 *list *.
9999
100- *index * must be greater than or equal to 0 .
100+ *index * must be greater than or equal to `` 0 `` .
101101
102102 Python must be preinitialized to call this function.
103103
@@ -256,18 +256,18 @@ PyPreConfig
256256
257257 Set the LC_CTYPE locale to the user preferred locale?
258258
259- If equals to 0 , set :c:member:`~PyPreConfig.coerce_c_locale` and
260- :c:member:`~PyPreConfig.coerce_c_locale_warn` members to 0 .
259+ If equals to ``0`` , set :c:member:`~PyPreConfig.coerce_c_locale` and
260+ :c:member:`~PyPreConfig.coerce_c_locale_warn` members to ``0`` .
261261
262262 See the :term:`locale encoding`.
263263
264264 Default: ``1`` in Python config, ``0`` in isolated config.
265265
266266 .. c:member:: int coerce_c_locale
267267
268- If equals to 2 , coerce the C locale.
268+ If equals to ``2`` , coerce the C locale.
269269
270- If equals to 1 , read the LC_CTYPE locale to decide if it should be
270+ If equals to ``1`` , read the LC_CTYPE locale to decide if it should be
271271 coerced.
272272
273273 See the :term:`locale encoding`.
@@ -282,8 +282,8 @@ PyPreConfig
282282
283283 .. c:member:: int dev_mode
284284
285- If non-zero, enables the :ref:`Python Development Mode <devmode>`:
286- see :c:member:`PyConfig.dev_mode`.
285+ :ref:`Python Development Mode <devmode>`: see
286+ :c:member:`PyConfig.dev_mode`.
287287
288288 Default: ``-1`` in Python mode, ``0`` in isolated mode.
289289
@@ -329,8 +329,10 @@ PyPreConfig
329329
330330 If non-zero, enable the :ref: `Python UTF-8 Mode <utf8-mode >`.
331331
332- Set by the :option: `-X utf8 <-X> ` command line option and the
333- :envvar: `PYTHONUTF8 ` environment variable.
332+ Set to ``0 `` or ``1 `` by the :option: `-X utf8 <-X> ` command line option
333+ and the :envvar: `PYTHONUTF8 ` environment variable.
334+
335+ Also set to ``1 `` if the ``LC_CTYPE `` locale is ``C `` or ``POSIX ``.
334336
335337 Default: ``-1 `` in Python config and ``0 `` in isolated config.
336338
@@ -555,7 +557,7 @@ PyConfig
555557 * Otherwise (``python -c code `` and ``python ``), prepend an empty string,
556558 which means the current working directory.
557559
558- Set to 1 by the :option:`-P` command line option and the
560+ Set to ``1`` by the :option:`-P` command line option and the
559561 :envvar:`PYTHONSAFEPATH` environment variable.
560562
561563 Default: ``0`` in Python config, ``1`` in isolated config.
@@ -592,10 +594,10 @@ PyConfig
592594
593595 .. c:member:: int buffered_stdio
594596
595- If equals to 0 and :c:member:`~PyConfig.configure_c_stdio` is non-zero,
597+ If equals to ``0`` and :c:member:`~PyConfig.configure_c_stdio` is non-zero,
596598 disable buffering on the C streams stdout and stderr.
597599
598- Set to 0 by the :option:`-u` command line option and the
600+ Set to ``0`` by the :option:`-u` command line option and the
599601 :envvar:`PYTHONUNBUFFERED` environment variable.
600602
601603 stdin is always opened in buffered mode.
@@ -604,11 +606,11 @@ PyConfig
604606
605607 .. c:member:: int bytes_warning
606608
607- If equals to 1 , issue a warning when comparing :class:`bytes` or
609+ If equals to ``1`` , issue a warning when comparing :class:`bytes` or
608610 :class:`bytearray` with :class:`str`, or comparing :class:`bytes` with
609611 :class:`int`.
610612
611- If equal or greater to 2 , raise a :exc:`BytesWarning` exception in these
613+ If equal or greater to ``2`` , raise a :exc:`BytesWarning` exception in these
612614 cases.
613615
614616 Incremented by the :option:`-b` command line option.
@@ -671,6 +673,9 @@ PyConfig
671673
672674 If non-zero, enable the :ref:`Python Development Mode <devmode>`.
673675
676+ Set to ``1`` by the :option:`-X dev <-X>` option and the
677+ :envvar:`PYTHONDEVMODE` environment variable.
678+
674679 Default: ``-1`` in Python mode, ``0`` in isolated mode.
675680
676681 .. c:member:: int dump_refs
@@ -800,7 +805,7 @@ PyConfig
800805
801806 Enter interactive mode after executing a script or a command.
802807
803- If greater than 0 , enable inspect: when a script is passed as first
808+ If greater than ``0`` , enable inspect: when a script is passed as first
804809 argument or the -c option is used, enter interactive mode after executing
805810 the script or the command, even when :data:`sys.stdin` does not appear to
806811 be a terminal.
@@ -818,25 +823,27 @@ PyConfig
818823
819824 .. c:member:: int interactive
820825
821- If greater than 0 , enable the interactive mode (REPL).
826+ If greater than ``0`` , enable the interactive mode (REPL).
822827
823828 Incremented by the :option:`-i` command line option.
824829
825830 Default: ``0``.
826831
827832 .. c:member:: int isolated
828833
829- If greater than 0 , enable isolated mode:
834+ If greater than ``0`` , enable isolated mode:
830835
831- * Set :c:member:`~PyConfig.safe_path` to 1 :
836+ * Set :c:member:`~PyConfig.safe_path` to ``1`` :
832837 don't prepend a potentially unsafe path to :data:`sys.path` at Python
833838 startup.
834- * Set :c:member:`~PyConfig.use_environment` to 0 .
835- * Set :c:member:`~PyConfig.user_site_directory` to 0 : don't add the user
839+ * Set :c:member:`~PyConfig.use_environment` to ``0`` .
840+ * Set :c:member:`~PyConfig.user_site_directory` to ``0`` : don't add the user
836841 site directory to :data:`sys.path`.
837842 * Python REPL doesn't import :mod:`readline` nor enable default readline
838843 configuration on interactive prompts.
839844
845+ Set to ``1`` by the :option:`-I` command line option.
846+
840847 Default: ``0`` in Python mode, ``1`` in isolated mode.
841848
842849 See also :c:member:`PyPreConfig.isolated`.
@@ -906,7 +913,7 @@ PyConfig
906913
907914 Module search paths: :data:`sys.path`.
908915
909- If :c:member:`~PyConfig.module_search_paths_set` is equal to 0 ,
916+ If :c:member:`~PyConfig.module_search_paths_set` is equal to ``0`` ,
910917 :c:func:`Py_InitializeFromConfig` will replace
911918 :c:member:`~PyConfig.module_search_paths` and sets
912919 :c:member:`~PyConfig.module_search_paths_set` to ``1``.
@@ -970,7 +977,7 @@ PyConfig
970977
971978 .. c:member:: int parser_debug
972979
973- Parser debug mode. If greater than 0 , turn on parser debugging output (for expert only, depending
980+ Parser debug mode. If greater than ``0`` , turn on parser debugging output (for expert only, depending
974981 on compilation options).
975982
976983 Incremented by the :option:`-d` command line option. Set to the
@@ -981,7 +988,7 @@ PyConfig
981988 .. c:member:: int pathconfig_warnings
982989
983990 If non-zero, calculation of path configuration is allowed to log
984- warnings into ``stderr``. If equals to 0 , suppress these warnings.
991+ warnings into ``stderr``. If equals to ``0`` , suppress these warnings.
985992
986993 Default: ``1`` in Python mode, ``0`` in isolated mode.
987994
@@ -1031,7 +1038,7 @@ PyConfig
10311038
10321039 .. c:member:: int quiet
10331040
1034- Quiet mode. If greater than 0 , don't display the copyright and version at
1041+ Quiet mode. If greater than ``0`` , don't display the copyright and version at
10351042 Python startup in interactive mode.
10361043
10371044 Incremented by the :option:`-q` command line option.
@@ -1071,7 +1078,7 @@ PyConfig
10711078
10721079 Show total reference count at exit?
10731080
1074- Set to 1 by :option:`-X showrefcount <-X>` command line option.
1081+ Set to ``1`` by :option:`-X showrefcount <-X>` command line option.
10751082
10761083 Need a :ref:`debug build of Python <debug-build>` (the ``Py_REF_DEBUG ``
10771084 macro must be defined).
@@ -1150,6 +1157,8 @@ PyConfig
11501157 If equals to zero, ignore the :ref:`environment variables
11511158 <using-on-envvars>`.
11521159
1160+ Set to ``0`` by the :option:`-E` environment variable.
1161+
11531162 Default: ``1`` in Python config and ``0`` in isolated config.
11541163
11551164 .. c:member:: int user_site_directory
@@ -1164,11 +1173,11 @@ PyConfig
11641173
11651174 .. c:member:: int verbose
11661175
1167- Verbose mode. If greater than 0 , print a message each time a module is
1176+ Verbose mode. If greater than ``0`` , print a message each time a module is
11681177 imported, showing the place (filename or built-in module) from which
11691178 it is loaded.
11701179
1171- If greater or equal to 2 , print a message for each file that is checked
1180+ If greater or equal to ``2`` , print a message for each file that is checked
11721181 for when searching for a module. Also provides information on module
11731182 cleanup at exit.
11741183
@@ -1199,7 +1208,7 @@ PyConfig
11991208
12001209 .. c:member:: int write_bytecode
12011210
1202- If equal to 0 , Python won't try to write ``.pyc`` files on the import of
1211+ If equal to ``0`` , Python won't try to write ``.pyc`` files on the import of
12031212 source modules.
12041213
12051214 Set to ``0`` by the :option:`-B` command line option and the
@@ -1400,18 +1409,18 @@ Python Path Configuration
14001409
14011410If at least one "output field" is not set, Python calculates the path
14021411configuration to fill unset fields. If
1403- :c:member:`~PyConfig.module_search_paths_set` is equal to 0 ,
1412+ :c:member:`~PyConfig.module_search_paths_set` is equal to ``0`` ,
14041413:c:member:`~PyConfig.module_search_paths` is overridden and
1405- :c:member:`~PyConfig.module_search_paths_set` is set to 1 .
1414+ :c:member:`~PyConfig.module_search_paths_set` is set to ``1`` .
14061415
14071416It is possible to completely ignore the function calculating the default
14081417path configuration by setting explicitly all path configuration output
14091418fields listed above. A string is considered as set even if it is non-empty.
14101419``module_search_paths`` is considered as set if
1411- ``module_search_paths_set`` is set to 1 . In this case, path
1420+ ``module_search_paths_set`` is set to ``1`` . In this case, path
14121421configuration input fields are ignored as well.
14131422
1414- Set :c:member:`~PyConfig.pathconfig_warnings` to 0 to suppress warnings when
1423+ Set :c:member:`~PyConfig.pathconfig_warnings` to ``0`` to suppress warnings when
14151424calculating the path configuration (Unix only, Windows does not log any warning).
14161425
14171426If :c:member:`~PyConfig.base_prefix` or :c:member:`~PyConfig.base_exec_prefix`
@@ -1445,10 +1454,10 @@ The following configuration files are used by the path configuration:
14451454
14461455If a ``._pth`` file is present:
14471456
1448- * Set :c:member:`~PyConfig.isolated` to 1 .
1449- * Set :c:member:`~PyConfig.use_environment` to 0 .
1450- * Set :c:member:`~PyConfig.site_import` to 0 .
1451- * Set :c:member:`~PyConfig.safe_path` to 1 .
1457+ * Set :c:member:`~PyConfig.isolated` to ``1`` .
1458+ * Set :c:member:`~PyConfig.use_environment` to ``0`` .
1459+ * Set :c:member:`~PyConfig.site_import` to ``0`` .
1460+ * Set :c:member:`~PyConfig.safe_path` to ``1`` .
14521461
14531462The ``__PYVENV_LAUNCHER__`` environment variable is used to set
14541463:c:member:`PyConfig.base_executable`
@@ -1511,7 +1520,7 @@ initialization, the core feature of :pep:`432`:
15111520
15121521Private provisional API:
15131522
1514- * :c:member: `PyConfig._init_main `: if set to 0 ,
1523+ * :c:member: `PyConfig._init_main `: if set to `` 0 `` ,
15151524 :c:func: `Py_InitializeFromConfig ` stops at the "Core" initialization phase.
15161525* :c:member: `PyConfig._isolated_interpreter `: if non-zero,
15171526 disallow threads, subprocesses and fork.
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