BPO 1635741, when Python is initialized multiple times in the same process, it does not leak memory anymore.BPO 39926, Unicode support updated to version 13.0.0.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.
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 3.10 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 I guess I will rollback to older versions one by one to find which one works.Release Date: Oct. matplotlib is the reason I installed python. its two weeks after it was first reported. Just didn't know how else to bring this to someone's attention, thanks. Here's a PR to add Python 3.9 support to Kiwi (aka kiwisolver): This probably isn't an issue with CPython 3.9.0 itself, but rather third-party libraries needing to add 3.9 support and provide wheels, and they may be waiting for 3.9.0 to be officially released (due out today!).
Sstem: Ubuntu 16.04 with Python 3.9rc2 installed from deadsnakes repository ( ) Not having matplotlib is a MAJOR hurdle for many! Among a lot of error output is: WARNING: The wheel package is not available. Installing matplotlib via: python3 -m pip install -U matplotlibįails because kiwisolver cannot be installed. Python 3.9rc2 fails to install matplotlibĬreated on 07:49 by ullix, last changed 15:41 by kapil.sinha.
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