Stop using .keys() on dicts where not needed

Iterating over a dict results in the keys.

Using the 'in' operator on a dict checks if it's a key.

Change-Id: I6affbfa1a79a9e8c0b5b304078a7a8e4e792eecd

keystoneclient/auth/identity/v3/base.py

@@ -218,7 +218,7 @@ class AuthMethod(object):
             setattr(self, param, kwargs.pop(param, None))
 
         if kwargs:
-            msg = _("Unexpected Attributes: %s") % ", ".join(kwargs.keys())
+            msg = _("Unexpected Attributes: %s") % ", ".join(kwargs)
             raise AttributeError(msg)
 
     @classmethod

keystoneclient/httpclient.py

@@ -579,7 +579,7 @@ class HTTPClient(baseclient.Client, base.BaseAuthPlugin):
         Returns a slash-separated string of values ordered by key name.
 
         """
-        return '/'.join([kwargs[k] or '?' for k in sorted(kwargs.keys())])
+        return '/'.join([kwargs[k] or '?' for k in sorted(kwargs)])
 
     def get_auth_ref_from_keyring(self, **kwargs):
         """Retrieve auth_ref from keyring.

keystoneclient/session.py

@@ -130,7 +130,7 @@ class Session(object):
         if not session:
             session = requests.Session()
             # Use TCPKeepAliveAdapter to fix bug 1323862
-            for scheme in session.adapters.keys():
+            for scheme in session.adapters:
                 session.mount(scheme, TCPKeepAliveAdapter())
 
         self.auth = auth
@@ -682,7 +682,7 @@ class Session(object):
                 pass
 
         if params_copy:
-            raise exceptions.UnsupportedParameters(list(params_copy.keys()))
+            raise exceptions.UnsupportedParameters(list(params_copy))
 
         return params
 

keystoneclient/tests/functional/test_cli.py

@@ -59,8 +59,8 @@ class SimpleReadOnlyKeystoneClientTest(base.ClientTestBase):
             # check that region and publicURL exists. One might also
             # check for adminURL and internalURL. id seems to be optional
             # and is missing in the catalog backend
-            self.assertIn('publicURL', svc.keys())
+            self.assertIn('publicURL', svc)
-            self.assertIn('region', svc.keys())
+            self.assertIn('region', svc)
 
     def test_admin_endpoint_list(self):
         out = self.keystone('endpoint-list')

keystoneclient/tests/unit/test_memcache_crypt.py

@@ -54,7 +54,7 @@ class MemcacheCryptPositiveTests(testtools.TestCase):
                          len(keys['MAC']))
         self.assertNotEqual(keys['ENCRYPTION'],
                             keys['MAC'])
-        self.assertIn('strategy', keys.keys())
+        self.assertIn('strategy', keys)
 
     def test_key_strategy_diff(self):
         k1 = self._setup_keys(b'MAC')