Libraries and Modules

Learn how to use the main Python libraries and modules. Practical guides on os, datetime, math, requests, and much more.

Libraries and Modules

Python shlex: Parse Commands Safely

Learn Python shlex to split command lines, handle quotes, use quote and join, build mini-languages, and reduce shell injection risks.

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Reading time: 6 minutes

Libraries and Modules

Python shelve: Simple Persistence

Learn Python shelve for simple object persistence, mutable updates, pickle security, concurrency limits, and SQLite migration.

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Reading time: 5 minutes

Libraries and Modules

Python difflib: Compare Text and Files

Learn Python difflib to compare text, measure similarity, create unified diffs, generate HTML reports, and suggest close names.

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Reading time: 6 minutes

Libraries and Modules

Python statistics: Data Analysis Guide

Learn Python statistics for mean, median, standard deviation, quantiles, correlation, regression, NormalDist, and KDE.

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Reading time: 6 minutes

Libraries and Modules

Python fractions: Exact Rational Numbers

Learn Python fractions for exact rational arithmetic, automatic reduction, limit_denominator, formatting, and safe conversions.

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Reading time: 5 minutes

Libraries and Modules

Python Decimal: Precise Calculations

Learn Python Decimal for exact calculations, money, quantize, rounding modes, contexts, and validation without float errors.

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Reading time: 6 minutes

Libraries and Modules

Python uuid: Unique and Sortable IDs

Learn Python uuid versions 4, 5, 6, and 7, validation, database storage, sortable IDs, and essential security practices.

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Reading time: 7 minutes

Libraries and Modules

Python tempfile: Secure Temporary Files

Learn Python tempfile to create secure temporary files and directories with automatic cleanup across Windows and Unix.

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Reading time: 7 minutes