Libraries and Modules

Learn Python mimetypes to identify MIME types, extensions, and encodings safely in uploads, downloads, email, and web APIs.

Learn Python bisect for binary search, ordered insertion, duplicate ranges, thresholds, and safe sorted-list design.

Learn Python importlib.resources to access packaged files safely across wheels, installed applications, and custom import loaders.

Learn Python fileinput to read multiple files or stdin, track line numbers, open compressed logs, and rewrite content safely with

Learn Python linecache to read source lines by number, manage cached files, refresh changed code, and support traceback and import

Learn Python marshal to serialize internal types, control format versions, and reject code objects when they are unnecessary.

Learn Python copyreg to register reduction functions, customize pickle, and preserve object compatibility across versions.

Learn Python functools.partial to bind arguments, adapt callbacks, and create clear specialized functions.