Merge pull request #90 from ProgramR4732/patch-1

updated f-strings & removed unnecessary else block.

Author: UmanShahzad

ipinfo/details.py

@@ -12,13 +12,13 @@ def __init__(self, details):
 
     def __getattr__(self, attr):
         """Return attribute if it exists in details array, else return error."""
-        if attr in self.details:
-            return self.details[attr]
-        else:
+        if attr not in self.details:
             raise AttributeError(
-                "{} is not a valid attribute of Details".format(attr)
+                f"{attr} is not a valid attribute of Details"
             )
 
+        return self.details[attr]
+
     @property
     def all(self):
         """Return all details as dict."""