Python argparse Command-Line Interfaces Cheat Sheet
Design testable Python command-line interfaces with argparse positionals, options, subcommands, validation, defaults, help text, and controlled errors.
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Files, OS, and CLI
Build command-line tools and work with files, processes, configuration, and archives.
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Files, OS, and CLI cheat sheets
Each guide includes copy-ready syntax, detailed examples, and authoritative references.
Python Configuration with tomllib and configparser Cheat Sheet
Read TOML and INI configuration safely in Python with typed values, layered defaults, interpolation controls, validation, and version-aware standard-library APIs.
Open cheat sheetPython Files and Paths Cheat Sheet
Work safely with Python pathlib, text and binary files, directory traversal, globbing, JSON, temporary files, and atomic replacement.
Open cheat sheetPython OS Signals and Process Environment Cheat Sheet
Handle Python process signals, graceful shutdown, environment variables, child-process environments, platform differences, and startup configuration safely.
Open cheat sheetPython subprocess and Command Execution Cheat Sheet
Run child processes safely in Python with argument lists, captured text, checked exit codes, timeouts, standard input, environments, and Popen communication.
Open cheat sheetPython zipfile, tarfile, and Compression Cheat Sheet
Create, inspect, stream, and safely extract ZIP and tar archives with Python, plus gzip, bz2, lzma, and zlib compression for files and bytes.
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