Libraries and Modules

Add progress bars to Python scripts with tqdm. Learn installation, loops, manual updates, files, pandas, nested bars, and practical options.

Learn Python's random module: generate numbers, choose items, shuffle lists, sample data, use seeds, and know when to use secrets.

Learn Python pathlib to create, inspect, read, write, rename, move, and delete files and folders with clean cross-platform code.

Learn the Python os module to list, create, rename, move, and remove files and folders, work with paths, and read

Learn Python Counter to count items, find common values, update totals, compare counts, and solve practical frequency problems.

Learn how defaultdict prevents Python KeyError, when to use default_factory, how it compares with dict.get, setdefault, Counter, and common mistakes.

Learn Python itertools with practical examples of count, cycle, repeat, chain, combinations, permutations, groupby, tee, and memory-efficient iteration.

Learn how to install Python packages offline with pip download, pip install --no-index, wheels, cross-platform files, Conda, and private mirrors.