Outdated hashlib module in a non-current version of Python

Question

I installed a python package that I need, and tried to import it, but there's a line of code in the package:

from hashlib import blake2s

which returned the error:

ImportError: cannot import name 'blake2s'

After a bit of reading, I found that the hashlib module in Python 3.6+ has blake2s, but I'm using Python 3.5.6. Updating my Python version would solve this problem, but I don't have admin access on this system. So I'm stuck on Python 3.5.6.

Is there a way to get blake2s working in Python 3.5?

edit: I'm wondering if this can be used somehow... https://github.com/dchest/pyblake2

you should be able to install python for yourself (not systemwide) without privilege elevation. — M Z
– M Z, Commented Jan 12, 2021 at 4:19
Thanks for the suggestion, but I also need to use Python notebooks that are configured (by admins) to use the Python version installed on the server. — winampman
– winampman, Commented Jan 12, 2021 at 5:15
Depending on your situation, you can replace member function or subclass the relevant library based on thr new code. See this stackoverflow.com/questions/50599045/… — yoonghm
– yoonghm, Commented Jan 12, 2021 at 6:53

winampman · Accepted Answer · 2021-01-12 10:45:32Z

2

Answering my own question... I installed the pyblake2 package (linked in my edit above), then went inside the package I was trying to install and modified the import line.

I changed from hashlib import blake2s to from pyblake2 import blake2s and then reinstalled the package with that modified line.

It worked! The package is working in Python 3.5 even though Python 3.5 hashlib does not have blake2s.

answered Jan 12, 2021 at 10:45

winampman

4846 silver badges15 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Outdated hashlib module in a non-current version of Python

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related