Update stack-simple-balanced-parentheses.py

Author: ivanmmarkovic

Ch03. Basic Data Structures/Stack/stack-simple-balanced-parentheses.py

@@ -1,4 +1,4 @@
-from Stack import Stack
+from stack import Stack
 
 def parChecker(string):
     s = Stack()
@@ -11,4 +11,4 @@ def parChecker(string):
 
 print(parChecker('((()))'))
 print(parChecker('(()'))
-    
+