BPO 38692, os.pidfd_open added that allows process management without races and signals.BPO 38379, garbage collection does not block on resurrected objects.PEP 616, String methods to remove prefixes and suffixes.PEP 615, Support for the IANA Time Zone Database in the Standard Library.PEP 614, Relaxing Grammar Restrictions On Decorators.PEP 602, Python adopts a stable annual release cadence.PEP 593, Flexible function and variable annotations.PEP 585, Type Hinting Generics In Standard Collections.
PEP 573, Module State Access from C Extension Methods.Some of the new major new features and changes in Python 3.9 are: Major new features of the 3.9 series, compared to 3.8 Python 3.9 is incompatible with this unsupported version of Windows. The installer now also actively disallows installation on Windows 7. This is the first version of Python to default to the 64-bit installer on Windows. Python 3.11 is now the latest feature release series of Python 3. Note: The release you're looking at is Python 3.9.0, a legacy release. 5, 2020 This is the stable release of Python 3.9.0
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