1.1 Python

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• 0004 Logging instead of print The logging module gives every message a level, a timestamp and a destination you can change without editing code. It is the… Intermediate · Concept · Any system Article Files & automation 15 Oct 2026
• 0006 Testing with pytest: first tests, fixtures and parametrize pytest runs plain functions whose names start with test_ and reports every failing assert in detail. This guide covers setup, assertions, exceptions,… Intermediate · How-to · Any system Article Testing 15 Oct 2026
• 0010 Find duplicate files by content Scans folders and lists files with identical content, using file size first and SHA-256 hashes second. It is read-only and only reports… Intermediate · How-to · Any system Script Files & automation 15 Oct 2026
• 0074 pandas basics: read a CSV, filter rows and summarize with groupby Load a CSV into a pandas DataFrame, inspect it, filter rows with conditions, and compute totals per group, with the SQL equivalent… Intermediate · How-to · Any system Article Data analysis · Files & automation 15 Oct 2026
• 0084 Tiny JSON echo server for testing HTTP clients A standard-library Python server that echoes back the method, path, query, headers, and body of every request, and can return any status… Intermediate · How-to · Any system Script Files & automation · Making requests 15 Oct 2026