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).

After years of talking the talk, law firms may be starting to walk the walk when it comes to completing mergers.

Photoshop Harmonize automatically adjusts an object's color, lighting, and shadows to match any background. It's very, very good - and addictive.