PEP 602, CPython adopts an annual release cycle. PEP 615, the IANA Time Zone Database is now present in the standardĪn implementation of a topological sort of a graph is now provided in Select, struct, termios, zlib) are now using Time, _weakref) now use multiphase initialization as definedĪ number of standard library modules ( audioop, ast, grp, _json, _locale, math, operator, resource, _codecs, _contextvars, _crypt, _functools, ![]() Garbage collection does not block on resurrected objects Ī number of Python modules ( _abc, audioop, _bz2, PEP 617, CPython now uses a new parser based on PEG Ī number of Python builtins (range, tuple, set, frozenset, list, dict) are PEP 573, fast access to module state from methods of C extension Os.pidfd_open() added that allows process management without races PEP 593, flexible function and variable annotations PEP 616, string methods to remove prefixes and suffixes. PEP 614, relaxed grammar restrictions on decorators. ![]() PEP 585, type hinting generics in standard collections PEP 596 - Python 3.9 Release Schedule Summary – Release highlights ¶
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