Install Python from python.org or your package manager
Open a terminal or command prompt
Verify installation with `python –version` or `python3 –version`
Run a Python file with `python filename.py` or `python3 filename.py`
Start the interactive shell with `python` or `python3`
Execute a one-liner with `python -c “print(‘Hello’)”`
Run a script from an IDE such as VS Code, PyCharm, or IDLE
Use `python -m module_name` to run a module
On Windows, use `py filename.py` if the Python launcher is installed
On Unix-like systems, make the file executable and run `./filename.py` if it has a shebang