Fix python3 .keys() as a view failures

Author: SpamapS

src/saml2/cache.py

@@ -139,7 +139,7 @@ def entities(self, name_id):
         :return: A possibly empty list of entity identifiers
         """
         cni = code(name_id)
-        return self._db[cni].keys()
+        return list(self._db[cni].keys())
 
     def receivers(self, name_id):
         """ Another name for entities() just to make it more logic in the IdP

src/saml2/client_base.py

@@ -149,7 +149,7 @@ def _sso_location(self, entityid=None, binding=BINDING_HTTP_REDIRECT):
             raise IdpUnspecified("Too many IdPs to choose from: %s" % eids)
 
         try:
-            srvs = self.metadata.single_sign_on_service(eids.keys()[0], binding)
+            srvs = self.metadata.single_sign_on_service(list(eids.keys())[0], binding)
             return destinations(srvs)[0]
         except IndexError:
             raise IdpUnspecified("No IdP to send to given the premises")

tests/test_51_client.py

@@ -268,7 +268,7 @@ def test_create_auth_request_0(self):
         assert nid_policy.format == saml.NAMEID_FORMAT_TRANSIENT
 
     def test_create_auth_request_vo(self):
-        assert self.client.config.vorg.keys() == [
+        assert list(self.client.config.vorg.keys()) == [
             "urn:mace:example.com:it:tek"]
 
         ar_str = "%s" % self.client.create_authn_request(
@@ -1257,7 +1257,7 @@ def test_logout_1(self):
         print(resp)
         assert resp
         assert len(resp) == 1
-        assert resp.keys() == entity_ids
+        assert list(resp.keys()) == entity_ids
         response = resp[entity_ids[0]]
         assert isinstance(response, LogoutResponse)