boltons (conda): Boltons is a set of pure-Python utilities in the same spirit as — and yet conspicuously missing from — the standard library, including:    - Atomic file saving, bolted on with fileutils   - A highly-optimized OrderedMultiDict, in dictutils   - Two types of PriorityQueue, in queueutils   - Chunked and windowed iteration, in iterutils   - A full-featured TracebackInfo type, for representing stack traces, in tbutils   - A lightweight UTC timezone available in timeutils.   - Recursive mapping for nested data transforms, with remap
Keywords: cache|data-science|data-structures|file|json|python|queue|recursive|standard-library|statistics|utilities