Elegant Filesystem Interactions in Python using pathlib
summary
Pathlib provides first‑class, immutable path objects (added in Python 3.4, still provisional) that let code join paths with use slash operator to join paths, query metadata with .stat/.exists/.is_file/.samefile, and atomically replace outputs by writing to a temp path then renaming (temp-file write then rename to preserve previous file). It adds conveniences like read_text/write_text methods and Path.cwd()/Path.home(), but still requires str(path) for many legacy APIs and lacks a built‑in walk/os.scandir integration.
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