truststore-requests.py

import ssl
import requests
from requests.adapters import HTTPAdapter
import truststore

class TruststoreAdapter(HTTPAdapter):
    def init_poolmanager(
        self, *args, **kwargs
    ):
        ctx = truststore.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
        kwargs.setdefault("ssl_context", ctx)
        return super().init_poolmanager(
            *args, **pool_kwargs
        )


session = requests.Session()
session.adapters["https"] = TruststoreAdapter
session.request("GET", "https://example.com")