example guess the number

guess_number.py

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+# Simulate (or actually play) Guess the Number
+#   The number lies in a given range. Choose the number in the middle.
+#   If guess was too high, choose number in middle of lower half,
+#   if guess was too low,  choose number in middle of upper half.
+#   Halve the appropriate range & repeat unti the number is correct.
+#   Authour: Alan Richmond, Python3.codes
+
+binary = False  # set this to True or False
+lonum, hinum = 1, 128  # range for the number
+
+import random as r
+
+the_num = r.randint(lonum, hinum)  # computer chooses a number randomly
+print("I'm thinking of a number between", lonum, "and", hinum)
+
+lo = 1
+hi = hinum
+guesses = 0
+
+for i in range(lonum, hinum):  # repeat this until guess is correct:
+    # note the int!
+    #    guess=int(input ("What is your guess: ")) # uncomment to actually play
+    if binary:
+        guess = lo + (hi - lo) // 2  # integer division
+    else:
+        guess = r.randint(lo, hi)
+    print("Guess:", guess)
+    guesses += 1  # add 1 to count of guesses
+    # check the guessed number
+    if guess > the_num:
+        print("Lower!")
+        hi = guess  # bring down the upper bound
+    elif guess < the_num:
+        print("Higher!")
+        lo = guess  # push up the lower bound
+    else:
+        break  # yay!
+
+print("That took", guesses, "guesses")
+# print("That took {0} guesses".format(guesses)) # alternative to previous line