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"https://docs.python.org/2/using/cmdline.html\n \n\n\n\t \n \n\n\n\te:\\&gt;python /? \n\tusage: python [option] ... [-c cmd | -m mod | file | -] [arg] ... \n\tOptions and arguments (and corresponding environment variables): \n\t-b     : issue warnings about str(bytes_instance), str(bytearray_instance) \n\t         and comparing bytes/bytearray with str. (-bb: issue errors) \n\t-B     : don't write .pyc files on import; also PYTHONDONTWRITEBYTECODE=x \n\t-c cmd : program passed in as string (terminates option list) \n\t-d     : debug output from parser; also PYTHONDEBUG=x \n\t-E     : ignore PYTHON* environment variables (such as PYTHONPATH) \n\t-h     : print this help message and exit (also --help) \n\t-i     : inspect interactively after running script; forces a prompt even \n\t         if stdin does not appear to be a terminal; also PYTHONINSPECT=x \n\t-I     : isolate Python from the user's environment (implies -E and -s) \n\t-m mod : run library module as a script (terminates option list) \n\t-O     : remove assert and __debug__-dependent statements; add .opt-1 before \n\t         .pyc extension; also PYTHONOPTIMIZE=x \n\t-OO    : do -O changes and also discard docstrings; add .opt-2 before \n\t         .pyc extension \n\t-q     : don't print version and copyright messages on interactive startup \n\t-s     : don't add user site directory to sys.path; also PYTHONNOUSERSITE \n\t-S     : don't imply 'import site' on initialization \n\t-u     : force the stdout and stderr streams to be unbuffered; \n\t         this option has no effect on stdin; also PYTHONUNBUFFERED=x \n\t-v     : verbose (trace import statements); also PYTHONVERBOSE=x \n\t         can be supplied multiple times to increase verbosity \n\t-V     : print the Python version number and exit (also --version) \n\t         when given twice, print more information about the build \n\t-W arg : warning control; arg is action:message:category:module:lineno \n\t         also PYTHONWARNINGS=arg \n\t-x     : skip first line of source, allowing use of non-Unix forms of #!cmd \n\t-X opt : set implementation-specific option \n\t--check-hash-based-pycs always|default|never: \n\t    control how Python invalidates hash-based .pyc files \n\tfile   : program read from script file \n\t-      : program read from stdin (default; interactive mode if a tty) \n\targ ...: arguments passed to program in sys.argv[1:]\n \n\n\n\tOther environment variables: \n\tPYTHONSTARTUP: file executed on interactive startup (no default) \n\tPYTHONPATH   : ';'-separated list of directories prefixed to the \n\t               default module search path.  The result is sys.path. \n\tPYTHONHOME   : alternate &lt;prefix&gt; directory (or &lt;prefix&gt;;&lt;exec_prefix&gt;). \n\t               The default module search path uses &lt;prefix&gt;\\python{major}{minor}. \n\tPYTHONCASEOK : ignore case in 'import' statements (Windows). \n\tPYTHONIOENCODING: Encoding[:errors] used for stdin/stdout/stderr. \n\tPYTHONFAULTHANDLER: dump the Python traceback on fatal errors. \n\tPYTHONHASHSEED: if this variable is set to 'random', a random value is used \n\t   to seed the hashes of str, bytes and datetime objects.  It can also be \n\t   set to an integer in the range [0,4294967295] to get hash values with a \n\t   predictable seed. \n\tPYTHONMALLOC: set the Python memory allocators and/or install debug hooks \n\t   on Python memory allocators. Use PYTHONMALLOC=debug to install debug \n\t   hooks. \n\tPYTHONCOERCECLOCALE: if this variable is set to 0, it disables the locale \n\t   coercion behavior. Use PYTHONCOERCECLOCALE=warn to request display of \n\t   locale coercion and locale compatibility warnings on stderr. \n\tPYTHONBREAKPOINT: if this variable is set to 0, it disables the default \n\t   debugger. It can be set to the callable of your debugger of choice. \n\tPYTHONDEVMODE: enable the development mode.\n \n\n\n\t \n \n"
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