Using client certificate with requests library

client_cert.py

# https://github.com/kennethreitz/requests/issues/30#issuecomment-3631717

def with_cert(session, key, cert=None):
    "Monkeypatch session pool manager with client cert stuff"

    session.poolmanager = session.poolmanager.__class__(
        key_file = key,
        cert_file = cert or key,
        **session.poolmanager.connection_pool_kw)

    return session

# usage:

from requests import Session
with_cert(Session(), 'my_cert.pem').get('https://193.201.228.75/', verify=False).content