Your question doesn't have many details, but see:
https://cryptography.io/en/latest/faq/#why-are-there-no-wheels-for-my-python3-x-version
I suspect this answers your question.
Alex
On Tue, May 31, 2022 at 12:18 PM Zhang, Yang via Cryptography-dev <
cryptography-dev@python.org> wrote:
> Dear Cryp
Dear Cryptography Dev team,
I am trying to install a cryptography package for my python 3.7 on a windows 64
machine but could not find a suitable version on the Pypi website.
Could you please suggest one to use, please?
Many thanks
Best Regards
Yang Zhang
Data Scientist
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