from pathlib import Path
from stripe import StripeClient
PUB_KEY_ID = "keyid_test_123"
PRIV_KEY_LOCATION = "/some/path/to/a/secp256r1-key.pem"
client = StripeClient(
 signing_keys={
 "key_id": PUB_KEY_ID,
 "private_key": Path(PRIV_KEY_LOCATION).read_text(),
 },
)
customers = client.v1.customers.list()
print(customers)