chore: use f-strings instead of join

Author: nijel

social_core/backends/keycloak.py

@@ -108,13 +108,7 @@ def algorithm(self):
         return self.setting("ALGORITHM", default="RS256")
 
     def public_key(self):
-        return "\n".join(
-            [
-                "-----BEGIN PUBLIC KEY-----",
-                self.setting("PUBLIC_KEY"),
-                "-----END PUBLIC KEY-----",
-            ]
-        )
+        return f"-----BEGIN PUBLIC KEY-----\n{self.setting('PUBLIC_KEY')}\n-----END PUBLIC KEY-----"
 
     def user_data(self, access_token: str, *args, **kwargs) -> dict[str, Any] | None:
         """Decode user data from the access_token

social_core/backends/untappd.py

@@ -92,9 +92,7 @@ def get_user_details(self, response):
                 "email": user_data.get("settings", {}).get("email_address", ""),
                 "first_name": user_data.get("first_name"),
                 "last_name": user_data.get("last_name"),
-                "fullname": " ".join(
-                    [user_data.get("first_name"), user_data.get("last_name")]
-                ),
+                "fullname": f"{user_data.get('first_name')} {user_data.get('last_name')}",
             }
         )
         return user_data

social_core/backends/vk.py

@@ -187,7 +187,7 @@ def auth_complete(self, *args, **kwargs):
         # Verify signature, if present
         key, secret = self.get_key_and_secret()
         if auth_key:
-            check_key = vk_sig("_".join([key, self.data.get("viewer_id"), secret]))
+            check_key = vk_sig(f"{key}_{self.data.get('viewer_id')}_{secret}")
             if check_key != auth_key:
                 raise ValueError("VK.com authentication failed: invalid auth key")