Warning / Error handling in python

[snippsat]

Try.

import warnings

warnings.filterwarnings('ignore')

import cryptography
from cryptography import utils

with warnings.catch_warnings():
    warnings.simplefilter('ignore', cryptography.utils.DeprecatedIn23)
    import cryptography.hazmat.primitives.constant_time

Another way can be to downgrade to a version before Waring was put in.

pip install cryptography==2.0.2