Comment 8 for bug 1530667

I would guess that this is because pylint.el includes:

(require 'tramp)

and that this is more a problem with Tramp startup, than with pylint. I've had slow Tramp startup problems in other contexts unrelated to python.

Possibly relevant references:

https://magit.vc/manual/magit/Emacs-245-hangs-when-loading-Magit.html#Emacs-245-hangs-when-loading-Magit, which includes:

> You can work around the problem by setting tramp-ssh-controlmaster-options. Changing your DNS server (e.g. to Google’s 8.8.8.8) may also be sufficient to work around the issue.

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=20015