Update solution.py

kyu_6/sums_of_parts/solution.py

@@ -8,7 +8,7 @@
 
 def parts_sums(input_ls: list) -> list:
     """
-    Sums of Parts.
+    Sum of Parts.
 
     The function parts_sums will take as parameter a list input_ls
     and return a list of the sums of its parts.