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).

Andrea Bartz was disturbed to learn that her books had been used to train A.I. chatbots. So she sued, and helped win the largest copyright settlement in history. By Alexandra Alter After four decades, ...