diff --git a/friend_functions.py b/friend_functions.py
index 6f5ecf7..faf7e09 100644
--- a/friend_functions.py
+++ b/friend_functions.py
@@ -17,7 +17,7 @@ def count_people(people):
         >>> count_people(friends)
         10
     """
-    raise NotImplementedError()
+    return len(people)
 
 def get_email(people, name):
     """Returns the named person's email address. If there is no such person, returns None.