# python > Python language interpreter. > More information: . - Start a REPL (interactive shell): `python` - Execute script in a given Python file: `python {{script.py}}` - Execute script as part of an interactive shell: `python -i {{script.py}}` - Execute a Python expression: `python -c "{{expression}}"` - Run library module as a script (terminates option list): `python -m {{module}} {{arguments}}` - Install a package using pip: `python -m pip install {{package_name}}` - Interactively debug a Python script: `python -m pdb {{script.py}}`