Could you explain what the flake8 tool is and how it helps find errors in code?

flake8 is a static code analysis tool for Python that helps find errors and style violations.

It combines several checks:

• PEP8 — checks code style compliance for Python.
• PyFlakes — detects syntax errors and potential bugs.
• McCabe — measures function complexity.

Example usage:

flake8 my_script.py

flake8 will output a list of issues with line numbers and descriptions, allowing quick fixes and code quality improvements.