Argument Parsing

Qunar Tech Salon

Dec 29, 2017 · Fundamentals

12 Essential Python Programming Basics: Regular Expressions, Directory Traversal, List Sorting, Deduplication, Dictionary Sorting, Data Conversion, Time Operations, Command‑Line Parsing, Print Formatting, Base Conversion, System Commands, Signal Handling, and File I/O

This article presents a concise collection of twelve fundamental Python techniques—including regex substitution, directory walking, list sorting and deduplication, dictionary sorting, conversions between dict/list/string, time manipulation, getopt argument parsing, formatted printing, numeral base conversion, executing system commands, handling Ctrl+C/Ctrl+D signals, and file reading/writing—each illustrated with ready‑to‑run code snippets.