Client/server pair, not working

certclient.py

@@ -0,0 +1,53 @@
+#!/usr/bin/python3
+
+import argparse
+import requests
+
+
+parser = argparse.ArgumentParser(description='certclient')
+parser.add_argument(
+    '--ca-cert',
+    dest='ca_cert',
+    action='store',
+    required=True)
+parser.add_argument(
+    '--client-cert',
+    dest='client_cert',
+    action='store',
+    required=True)
+parser.add_argument(
+    '--client-key',
+    dest='client_key',
+    action='store',
+    required=True)
+parser.add_argument(
+    '--server',
+    dest='server',
+    action='store',
+    required=True)
+FLAGS = parser.parse_args()
+
+
+class CertClient(object):
+
+  def __init__(self, server, ca_cert, client_cert, client_key):
+    self._session = requests.Session()
+    self._session.verify = ca_cert
+    self._session.cert = (client_cert, client_key)
+    self._server = server
+
+  def Request(self):
+    self._session.get(self._server)
+
+
+def main():
+  client = CertClient(
+      FLAGS.server,
+      FLAGS.ca_cert,
+      FLAGS.client_cert,
+      FLAGS.client_key)
+  client.Request()
+
+
+if __name__ == '__main__':
+  main()