os.path.join (folder, filename) ensures the path is correct for the system. On Windows, it uses backslashes (reports\summary.txt); on Linux and macOS it uses forward slashes (reports/summary.txt).

Python's if name equals main construct provides a standard entry point to run scripts and standalone apps. Python has become a popular programming language due largely to its highly readable syntax ...

Google Colab is a free online tool from Google that lets you write and run Python code directly in your browser.