Python bytes, bytearray, memoryview, and Binary Data Cheat Sheet
Handle Python binary data safely with bytes, bytearray, memoryview, struct packing, hexadecimal conversion, slicing, and zero-copy buffer techniques.
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Data and Serialization
Represent text, numbers, structured data, dates, binary values, and persistent objects.
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Data and Serialization cheat sheets
Each guide includes copy-ready syntax, detailed examples, and authoritative references.
Python Dates, Times, and Time Zones Cheat Sheet
Model dates, aware datetimes, UTC instants, parsing, IANA time zones, daylight-saving transitions, ambiguous times, and elapsed durations in Python.
Open cheat sheetPython Decimal, Fractions, and Numeric Precision Cheat Sheet
Handle Python numeric precision deliberately with float comparisons, math.fsum, Decimal contexts and rounding, Fraction arithmetic, and statistics.
Open cheat sheetPython JSON, CSV, and Data Interchange Cheat Sheet
Exchange JSON and CSV safely in Python with deterministic encoding, custom types, strict numeric parsing, duplicate detection, streams, dialects, and records.
Open cheat sheetPython pickle, shelve, and Persistent Objects Cheat Sheet
Persist trusted Python objects with pickle and shelve using explicit protocols, custom state, persistent IDs, safe inspection, and disciplined compatibility boundaries.
Open cheat sheetPython Random Sampling and Statistics Cheat Sheet
Generate reproducible simulations and summarize numeric data with random, secrets, and statistics while avoiding bias, invalid assumptions, and precision traps.
Open cheat sheetPython Regular Expressions Cheat Sheet
Search, validate, capture, iterate, split, replace, and debug text with Python's re module, raw strings, named groups, flags, and bounded patterns.
Open cheat sheetPython Text Encoding and Unicode Cheat Sheet
Handle Unicode text correctly in Python with UTF-8, normalization, case folding, grapheme-aware design, codec error policies, and explicit file boundaries.
Open cheat sheetPython XML Parsing and Generation Cheat Sheet
Parse, query, stream, modify, and generate XML safely with ElementTree, namespaces, incremental parsing, canonicalization, and security boundaries.
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