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).

pandas is a Python module that's popular in data science and data analysis. It's offers a way to organize data into ...

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