If you are getting a warning similar to below when running a Python3 application:
/usr/lib/python3/dist-packages/paramiko/transport.py:219: CryptographyDeprecationWarning: Blowfish has been deprecated
This can be resolved by upgrading to the latest paramiko module.
# check current version then upgrade pip3 show paramiko pip3 install paramiko --upgrade # check upgraded version pip3 show paramiko
In my case, this upgraded paramiko to 3.1.0 and the warning was no longer thrown.
REFERENCES