Update lists

python/lists

@@ -1,15 +1,24 @@
 # LISTS
+
+# use square brackets to get one item of a list using index.
+# note that first item has index 0. 
 scores = [67, 32, 29]
 print(scores[2])
 
+print()  # print blank line
+
 print(sum(scores))
 print(len(scores))
 
+print()
+
 # USING A FOR LOOP TO ITERATE A LIST
 for score in scores:
   if score % 2 == 0:
     print(score, ' is even.')
 
+print()
+
 names = ["Alice", "Tina", "Berta"]
 
 # SORTING A LIST
@@ -18,4 +27,21 @@ print(sorted(names))
 # ITERATE A LIST TO FIND NAMES THAT CONTAIN C
 for name in names:
   if 'c' in name:
-    print(name + ' contains a c')
+    print(name, ' contains a c')
+
+print()
+
+# add an item to a list
+names.append('Jenny')
+print(names)
+
+# delete Tina from the list
+names.remove('Tina')
+print(names)
+
+print()
+
+# list inside a list
+scores.append([100, 103])
+print(scores)
+print(scores[3][0])