.B \-x
]
[
-[
.B \-X
.I option
]
+[
.B \-?
]
.br
more verbose than the default if the code is correct: new warnings are
only emitted when an issue is detected. Effect of the developer mode:
* Add default warning filter, as -W default
- * Install debug hooks on memory allocators: see the PyMem_SetupDebugHooks() C function
+ * Install debug hooks on memory allocators: see the PyMem_SetupDebugHooks()
+ C function
* Enable the faulthandler module to dump the Python traceback on a crash
* Enable asyncio debug mode
* Set the dev_mode attribute of sys.flags to True
otherwise activate automatically). See PYTHONUTF8 for more details
-X pycache_prefix=PATH: enable writing .pyc files to a parallel tree rooted at the
- given directory instead of to the code tree.
+ given directory instead of to the code tree.
+
+ -X warn_default_encoding: enable opt-in EncodingWarning for 'encoding=None'
+
+ -X no_debug_ranges: disable the inclusion of the tables mapping extra location
+ information (end line, start column offset and end column offset) to every
+ instruction in code objects. This is useful when smaller code objects and pyc
+ files are desired as well as suppressing the extra visual location indicators
+ when the interpreter displays tracebacks.
+
+ -X frozen_modules=[on|off]: whether or not frozen modules should be used
+ The default is "on" (or "off" if you are running a local build).
+
.TP
.B \-x
Skip the first line of the source. This is intended for a DOS
-d : turn on parser debugging output (for experts only, only works on\n\
debug builds); also PYTHONDEBUG=x\n\
-E : ignore PYTHON* environment variables (such as PYTHONPATH)\n\
--h : print this help message and exit (also --help)\n\
+-h : print this help message and exit (also -? or --help)\n\
";
static const char usage_2[] = "\
-i : inspect interactively after running script; forces a prompt even\n\
also PYTHONWARNINGS=arg\n\
-x : skip first line of source, allowing use of non-Unix forms of #!cmd\n\
-X opt : set implementation-specific option. The following options are available:\n\
-\n\
-X faulthandler: enable faulthandler\n\
-X showrefcount: output the total reference count and number of used\n\
memory blocks when the program finishes or after each statement in the\n\
checks which are too expensive to be enabled by default. Effect of the\n\
developer mode:\n\
* Add default warning filter, as -W default\n\
- * Install debug hooks on memory allocators: see the PyMem_SetupDebugHooks() C function\n\
+ * Install debug hooks on memory allocators: see the PyMem_SetupDebugHooks()\n\
+ C function\n\
* Enable the faulthandler module to dump the Python traceback on a crash\n\
* Enable asyncio debug mode\n\
* Set the dev_mode attribute of sys.flags to True\n\
when the interpreter displays tracebacks.\n\
-X frozen_modules=[on|off]: whether or not frozen modules should be used.\n\
The default is \"on\" (or \"off\" if you are running a local build).\n\
-\n\
--check-hash-based-pycs always|default|never:\n\
control how Python invalidates hash-based .pyc files\n\
";
"PYTHONNODEBUGRANGES: If this variable is set, it disables the inclusion of the \n"
" tables mapping extra location information (end line, start column offset \n"
" and end column offset) to every instruction in code objects. This is useful \n"
-" when smaller cothe de objects and pyc files are desired as well as suppressing the \n"
+" when smaller code objects and pyc files are desired as well as suppressing the \n"
" extra visual location indicators when the interpreter displays tracebacks.\n";
#if defined(MS_WINDOWS)