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).

3 things we've learned about using genAI in coding so far ...

Python web applications have long adhered to the Web Server Gateway Interface (WSGI) standard, which describes how they talk to web servers. WSGI, originally introduced in 2003 and updated in 2010, ...