import http.client
import ssl

# Load default certificates
context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
context.verify_mode = ssl.CERT_REQUIRED
context.load_default_certs()
ca_certs = context.get_ca_certs()
print('{} CA Certificates loaded:'.format(len(ca_certs)))
for cert_dict in ca_certs:
    print(cert_dict['subject'])
print()

# attempt to connect to python.org
print('Sending HTTPS request')
h = http.client.HTTPSConnection('python.org', 443, context=context)
h.request('GET', '/')
response = h.getresponse()
print('Response:', response.status, response.reason)
data = response.read()
h.close()