boltons

boltons is a collection of over 250 pure-Python utilities designed to fill gaps in Python's standard library. It provides high-performance data structures and convenient functions for common tasks across various domains like file systems, iteration, caching, and time management. The library maintains an active development status, with major releases occurring roughly annually, interspersed with minor updates bringing enhancements and bug fixes. [1, 4, 5, 6, 8, 11]