This code attempts to run command-line tools (pip install and ruff check) inside a Python script. These are not valid Python code and will cause a syntax error when you try to run the file as a Python program.

- The line `pip install ruff` is a shell command, not Python. To install packages, you run this in your terminal or command prompt, not inside a Python script.
- The line `ruff check --fix` is also a shell command for running the Ruff linter. It cannot be executed as Python code.
- Remove these shell commands from your Python file. If you want to use Ruff to check your code, run it separately in your terminal after writing valid Python code.