Geography: Properly handle missing timezones

plugins/Geography/plugin.py

@@ -90,6 +90,9 @@ class Geography(callbacks.Plugin):
             # Get the timezone object (and handle various errors)
             timezone = timezone_from_uri(irc, uri)
 
+            if timezone is None:
+                continue
+
             # Get the local time
             now = datetime.datetime.now(tz=timezone)
 
@@ -102,6 +105,10 @@ class Geography(callbacks.Plugin):
 
             return
 
+        irc.error(
+            _("Could not find the timezone of this location."), Raise=True
+        )
+
     @wrap(["text"])
     def timezone(self, irc, msg, args, query):
         """<location name to search>
@@ -123,6 +130,9 @@ class Geography(callbacks.Plugin):
             # Get the timezone object (and handle various errors)
             timezone = timezone_from_uri(irc, uri)
 
+            if timezone is None:
+                continue
+
             # Extract a human-friendly name, depending on the type of
             # the timezone object:
             if hasattr(timezone, "key"):