Python calendar: build month and week layouts
Build calendar structures and combine them with datetime without turning formatting into business logic.
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12 articles on this pagePython http.server: a local development server
Start a local HTTP server for quick checks without treating it as production infrastructure.
Python selectors: monitor multiple connections
Understand the portable low-level mechanism behind many event loops.
Python signal: graceful process shutdown
Turn a signal into a stop request and let normal control flow release resources safely.
Python ctypes: call native libraries carefully
Integrate a small C function while recognizing that the native boundary lacks Python's usual protections.
Python platform: identify the runtime environment
Collect useful compatibility and support details directly from the running Python process.
Python gettext: internationalize application messages
Separate translatable messages from logic and load the correct catalog for each locale.
compileall and py_compile: validate Python syntax
Validate Python modules without importing or executing application code.
Python faulthandler: diagnose fatal crashes
Capture a useful clue when a native extension or hung process cannot raise an ordinary Python exception.
Python atexit: cleanup when programs exit
Run small cleanup tasks after normal interpreter shutdown without treating them as an absolute guarantee.
Python gc: understand cyclic garbage collection
Use the gc module for focused diagnosis of reference cycles and memory pressure.
Python timeit: benchmark small code snippets
Compare a micro-optimization with a reproducible experiment before changing production code.