3 files changed, 5 insertions, 4 deletions
diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py
index 07836709fb..7199113dac 100644
--- a/synapse/rest/client/v1/login.py
+++ b/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)
diff --git a/synapse/rest/client/v1/pusher.py b/synapse/rest/client/v1/pusher.py
index e218ed215c..5547f1b112 100644
--- a/synapse/rest/client/v1/pusher.py
+++ b/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, {}))
diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py
index 5378a9a938..2bfd4d96bf 100644
--- a/synapse/rest/client/v1/register.py
+++ b/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):