Merge pull request #121 from lironmiz/unit8-Ex8.3.1

Create unit8_ex8.3.1.py

Author: lironmiz

unit8_ex8.3.1.py

@@ -0,0 +1,42 @@
+# exercise 8.3.1 from unit 8
+'''
+given the dict:
+my_dict = {(1, 2): 1, (2, 3): 2}
+
+Here are four pieces of code. Choose the output obtained by running each of the code segments.
+
+'''
+# 1:
+
+my_dict = {(1, 2): 1, (2, 3): 2}
+
+for key in my_dict.keys():
+  print(key)
+  
+# Answer: (1,2) and (2,3)
+
+# 2:
+
+for value in my_dict.values():
+  print(value)
+  
+# Answer: 1 and 2
+
+# 3:
+
+print(len(my_dict))
+  
+# Answer: 2
+
+# 4:
+
+print(my_dict[1])
+  
+# Answer: KeyError
+
+# 5:
+
+print(my_dict[1, 2])
+  
+# Answer: 1
+