usage: /usr/bin/python3.15 [option] ... [-c cmd | -m mod | file | -] [arg] ...
Options (and corresponding environment variables):
-b : issue warnings about converting bytes/bytearray to str and comparing
bytes/bytearray with str or bytes with int. (-bb: issue errors)
deprecated since 3.15 and will become no-op in 3.17.
-B : don't write .pyc files on import; also PYTHONDONTWRITEBYTECODE=x
-c cmd : program passed in as string (terminates option list)
-d : turn on parser debugging output (for experts only, only works on
debug builds); also PYTHONDEBUG=x
-E : ignore PYTHON* environment variables (such as PYTHONPATH)
-h : print this help message and exit (also -? or --help)
-i : inspect interactively after running script; forces a prompt even
if stdin does not appear to be a terminal; also PYTHONINSPECT=x
-I : isolate Python from the user's environment (implies -E, -P and -s)
-m mod : run library module as a script (terminates option list)
-O : remove assert and __debug__-dependent statements; add .opt-1 before
.pyc extension; also PYTHONOPTIMIZE=x
-OO : do -O changes and also discard docstrings; add .opt-2 before
.pyc extension
-P : don't prepend a potentially unsafe path to sys.path; also
PYTHONSAFEPATH
-q : don't print version and copyright messages on interactive startup
-s : don't add user site directory to sys.path; also PYTHONNOUSERSITE=x
-S : don't imply 'import site' on initialization
-u : force the stdout and stderr streams to be unbuffered;
this option has no effect on stdin; also PYTHONUNBUFFERED=x
-v : verbose (trace import statements); also PYTHONVERBOSE=x
can be supplied multiple times to increase verbosity
-V : print the Python version number and exit (also --version)
when given twice, print more information about the build
-W arg : warning control; arg is action:message:category:module:lineno
also PYTHONWARNINGS=arg
-x : skip first line of source, allowing use of non-Unix forms of #!cmd
-X opt : set implementation-specific option
--check-hash-based-pycs always|default|never:
control how Python invalidates hash-based .pyc files
--help-env: print help about Python environment variables and exit
--help-xoptions: print help about implementation-specific -X options and exit
--help-all: print complete help information and exit
Arguments:
file : program read from script file
- : program read from stdin (default; interactive mode if a tty)
arg ...: arguments passed to program in sys.argv[1:]
Options (26)
| Option | Description | Source |
|---|---|---|
-b | : issue warnings about converting bytes/bytearray to str and comparing bytes/bytearray with str or bytes with int. | help + man |
-B | : don't write .pyc files on import; | help + man |
-d | Turn on parser debugging output (for expert only, depending on compilation options). | help + man |
-E | Ignore environment variables like PYTHONPATH and PYTHONHOME that modify the behavior of the interpreter. | help + man |
-h, -?, --help | Prints the usage for the interpreter executable and exits. | help + man |
-i | When a script is passed as first argument or the -c option is used, enter interactive mode after executing the script or the command. | help + man |
-I | : isolate Python from the user's environment (implies -E, -P and -s) | help + man |
-O | Remove assert statements and any code conditional on the value of __debug__; | help + man |
-OO | : do -O changes and also discard docstrings; | help + man |
-P | Don't automatically prepend a potentially unsafe path to sys.path such as the current directory, the script's directory or an empty string. | help + man |
-q | : don't print version and copyright messages on interactive startup | help + man |
-s | : don't add user site directory to sys.path; | help + man |
-S | Disable the import of the module site and the site-dependent manipulations of sys.path that it entails. | help + man |
-u | : force the stdout and stderr streams to be unbuffered; | help + man |
-v | Print a message each time a module is initialized, showing the place (filename or built-in module) from which it is loaded. | help + man |
-V, --version | : print the Python version number and exit (also --version) when given twice, print more information about the build | help + man |
-x | : skip first line of source, allowing use of non-Unix forms of #!cmd | help + man |
--check-hash-based-pycs always|default|never: | Configure how Python evaluates the up-to-dateness of hash-based .pyc files. | help + man |
-c command | Specify the command to execute (see next section). (in the manual page but not in --help) | man |
--help-env | Prints help about Python-specific environment variables and exits. (in the manual page but not in --help) | man |
--help-xoptions | Prints help about implementation-specific -X options and exits. (in the manual page but not in --help) | man |
--help-all | Prints complete usage information and exits. (in the manual page but not in --help) | man |
-m module-name | Searches sys.path for the named module and runs the corresponding .py file as a script. (in the manual page but not in --help) | man |
-R | Turn on hash randomization. (in the manual page but not in --help) | man |
-W argument | Warning control. (in the manual page but not in --help) | man |
-X option | Set implementation-specific option. (in the manual page but not in --help) | man |