Once you know how to add and use a Python module, you will greatly extend the capabilities of the language. A Python module is an external class or set of functions that exist outside the main file of ...

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).

Why is your Python app so slow? Find out by using Python’s built-in profiler to locate bottlenecks in your Python code Python may not be the fastest language around, but it is often fast enough. And ...