FIX error AttributeError: '_Certificate' object has no attribute 'not…

[vBlackOut]

ERROR : AttributeError: '_Certificate' object has no attribute 'not_valid_after_utc'. Did you mean: 'not_valid_after'?

environment : Python 3.10 (not have that error on python 3.12)
cryptography==44.0.0
requests==2.32.3

[vog]

Thanks for reporting. Alas, we can't accept this pull request, as it essentially reverts #52, which we introduced for a good reason, see:

• [RFC] Proposal for tz-aware datetime usage in cryptography.x509 pyca/cryptography#9186
• Deprecate naive datetime x509 APIs pyca/cryptography#9667

Moreover, the not_valid_after_utc property still does exist in the Cryptography library version 44.0.0:

• https://github.com/pyca/cryptography/blob/44.0.0/src/cryptography/hazmat/bindings/_rust/x509.pyi#L97

Our internal tests also show no failure at all.

@vBlackOut Are you sure that your Python 3.10 setup (and not just your Python 3.12 setup) does have cryptography==44.0.0?

I'm asking because the most likely reason for your error message is that your Python 3.10 setup has a cryptography version before 42.0.0, i.e. 41 or older.