tqdm - Intelligent Progress Bars tqdm is the standard tool for monitoring long-running loops in Python. It has negligible overhead (about 60ns per iteration) and works everywhere: in the console, in Jupyter notebooks, and even in GUIs. When to Use - Monitoring long-running loops (simulations, data processing, ML training). - Tracking progress of file downloads or I/O operations. - Providing visual feedback in command-line tools. - Integrating progress tracking into pandas operations (progress apply). - Monitoring parallel tasks in concurrent.futures or multiprocessing. - Creating nested progr…