Added Exercise 2

ex_01_02.py

@@ -0,0 +1,20 @@
+#!/usr/bin/python3
+
+import random
+
+from util.io import readvalue
+
+if( __name__ == "__main__"):
+	random_value = random.randint(1, 6)
+	print("I just generated a random number between 1 and 6")
+	guess = -1
+	while(1):
+		guess = readvalue("Could you guess it? Try: ", int)
+		if(not(1 <= guess <= 6)):
+			print("Your number is not in the interval.")
+		else:
+			break
+	if(guess != random_value):
+		print("Wrong, it was", random_value, "!")
+	else:
+		print("Nice try")