requests.get('example.com', verify=certifi.where())

requests.get('example.com', verify=certifi.where())
or
print(requests.certs.where())

verify='/path/to/cert.pem'

requests.get('https://kennethreitz.org', cert=('/path/client.cert', '/path/client.key'))
<Response [200]>

cert= client side certificate and private key

Convert .cer into .pem:
open, export as Bse64 encoded (this will be the host certificate, e.g. cert.pem
2. from the tree open intermediate certificate and save in the same way
3. from the tree-tab of host or intermediate cert open root certificate and export in Base64
4. append content of int and root certificates into cert.pem (ordermatters: cert,int,root at the end)
Grüß dich! @€°C Straße
�а тепер напишу щонебудь українською :)
скоштували? фігня якась .\ґ їжа�, сало, вотка
a teray po polsku. Ciekawe, czy będzie coś widać