PYTHON(1)

okay so welcome to the PYTHON(1) page, straight out of the User Commands manual — and bestie, it's the vtkpython one, which means this Python comes with VTK library bindings already in the bag 💖✨

🌸 NAME 🌸

vtkpython — a Python interpreter that has VTK library bindings, slay 🐍👑

💅 DESCRIPTION 💅

okay so the vibe is literally this:

usage: python [option] ... [-c cmd | -m mod | file | -] [arg] ...

🎀 Options (and corresponding environment variables) 🎀

• -b — the "be careful with types" flag: it issues warnings about converting bytes/bytearray to str, and about comparing bytes/bytearray with str or bytes with int. Wanna make those actual errors instead of lil warnings? That's -bb. 💀
• -B — don't write .pyc files on import. Also available as PYTHONDONTWRITEBYTECODE=x.
• -c cmd — the program gets passed in as a string. Heads up: this terminates the option list, periodt.
• -d — turn on parser debugging output. For experts only, and it only works on debug builds, no cap. Also PYTHONDEBUG=x.
• -E — ignore the PYTHON* environment variables (things like PYTHONPATH). 🫶
• -h — print this help message and exit (also -? or --help).
• -i — inspect interactively after running the script; it forces a prompt even if stdin does not appear to be a terminal. Also PYTHONINSPECT=x.
• -I — isolate Python from the user's environment. It implies -E, -P and -s. main character energy, honestly.
• -m mod — run a library module as a script. This one also terminates the option list.
• -O — remove assert and __debug__-dependent statements; add .opt-1 before the .pyc extension. Also PYTHONOPTIMIZE=x.
• -OO — does all the -O changes and also discards docstrings; add .opt-2 before the .pyc extension. 😭 bye docstrings.
• -P — don't prepend a potentially unsafe path to sys.path. Also PYTHONSAFEPATH.
• -q — don't print the version and copyright messages on interactive startup.
• -s — don't add the 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. Warning tho: this option has no effect on stdin. Also PYTHONUNBUFFERED=x.
• -v — verbose (it traces import statements). Also PYTHONVERBOSE=x. You can supply it multiple times to increase verbosity, so go off. 🔥
• -V — print the Python version number and exit (also --version). When given twice, it prints more information about the build. 👑
• -W arg — warning control; arg is action:message:category:module:lineno. Also PYTHONWARNINGS=arg.
• -x — skip the first line of source, which lets you use non-Unix forms of #!cmd.
• -X opt — set an 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 (this is the default; interactive mode if it's a tty).
• arg ... — arguments passed to the program in sys.argv[1:].

🦋 SEE ALSO 🦋

The full documentation for Python is maintained as a Texinfo manual. If info and Python are properly installed at your site, this command:

info Python

should give you access to the complete manual. iykyk 💜

and that's the whole page, bestie — sign-off time: this was Python 3.13.8, dated October 2025. bye babe, go write some Python 💖🌈🎀