Fix flake8 warnings for new flake8

synapse/rest/client/v1/login.py

@@ -89,7 +89,7 @@ class LoginRestServlet(ClientV1RestServlet):
                                          LoginRestServlet.SAML2_TYPE):
                 relay_state = ""
                 if "relay_state" in login_submission:
-                    relay_state = "&RelayState="+urllib.quote(
+                    relay_state = "&RelayState=" + urllib.quote(
                                   login_submission["relay_state"])
                 result = {
                     "uri": "%s%s" % (self.idp_redirect_url, relay_state)

synapse/rest/client/v1/pusher.py

@@ -52,7 +52,7 @@ class PusherRestServlet(ClientV1RestServlet):
             if i not in content:
                 missing.append(i)
         if len(missing):
-            raise SynapseError(400, "Missing parameters: "+','.join(missing),
+            raise SynapseError(400, "Missing parameters: " + ','.join(missing),
                                errcode=Codes.MISSING_PARAM)
 
         logger.debug("set pushkey %s to kind %s", content['pushkey'], content['kind'])
@@ -83,7 +83,7 @@ class PusherRestServlet(ClientV1RestServlet):
                 data=content['data']
             )
         except PusherConfigException as pce:
-            raise SynapseError(400, "Config Error: "+pce.message,
+            raise SynapseError(400, "Config Error: " + pce.message,
                                errcode=Codes.MISSING_PARAM)
 
         defer.returnValue((200, {}))

synapse/rest/client/v1/register.py

@@ -38,7 +38,8 @@ logger = logging.getLogger(__name__)
 if hasattr(hmac, "compare_digest"):
     compare_digest = hmac.compare_digest
 else:
-    compare_digest = lambda a, b: a == b
+    def compare_digest(a, b):
+        return a == b
 
 
 class RegisterRestServlet(ClientV1RestServlet):

synapse/rest/client/v2_alpha/register.py

@@ -34,7 +34,8 @@ from synapse.util.async import run_on_reactor
 if hasattr(hmac, "compare_digest"):
     compare_digest = hmac.compare_digest
 else:
-    compare_digest = lambda a, b: a == b
+    def compare_digest(a, b):
+        return a == b
 
 
 logger = logging.getLogger(__name__)

synapse/rest/client/versions.py

@@ -26,9 +26,7 @@ class VersionsRestServlet(RestServlet):
 
     def on_GET(self, request):
         return (200, {
-            "versions": [
-                "r0.0.1",
-            ]
+            "versions": ["r0.0.1"]
         })