guessing_game.py

#!/usr/bin/python
import math, random
guess_range = [10,100]
number = 0
while (number < 1) and (number != ""):
        number = raw_input("\nPlease enter a number for the computer to guess: ")

# make it an integer
number = int(number)
logic = random.randrange(1,500) + 1
tries = 1

while logic is not number:
        if logic > number:
                guess_range[1] = logic
        elif logic < number:
                guess_range[0] = logic
        else:
                print "I guessed it! The number was, ", logic
                break

        if guess_range[0] >= guess_range[1]:
                guess_range[1] = guess_range[0] + guess_range[1]

        logic = random.randrange(guess_range[0],guess_range[1]) + 1
        print tries, " [", guess_range[0], ",", guess_range[1],"][ ", logic, ", ", number, "]\n"
        tries += 1

nicer-guesser.py

#!/usr/bin/python
import math, random
guess_range = [0,100]
number = 0
# Wait till the user gets input, then go!
while (number < 1) and (number != ""):
        number = raw_input("\nPlease enter a number for the computer to guess: ")

# make it an integer
number = int(number)
# The computer's guess variable / seed
seed = random.randrange(1,500) + 1
tries = 1

# Create a loop that checks to see if the number the computer 'seeds' is the same as the number the user input.
while seed is not number:
        # Check to see if the number is great, then add it to high range
        if seed > number:
                guess_range[1] = seed
        # check to see if the number is lower then add it to the low range.
        elif seed < number:
                guess_range[0] = seed
        # We assume that the only other possible option is that the answer whas guessed, we break loop
        else:
                print "I guessed it! The number was, ", seed
                break

        # This part is important, to prevent large numbers from having the low range be higher then the high range
        # we need to add both of them together to make a larger numer for the high range for the computer to work with
        # this allows the computer to continue to guess untill its rached the high number.
        if guess_range[0] >= guess_range[1]:
                guess_range[1] = guess_range[0] + guess_range[1]

        # Now we need to make a random number for the computer's guess or 'seed' This guess is from the high and low ranges as defined above
        seed = random.randrange(guess_range[0],guess_range[1]) + 1
        # print and increment
        print tries, " [", guess_range[0], ",", guess_range[1],"][ ", seed, ", ", number, "]\n"
        tries += 1

output.txt

T  [ low, high] [seed, number]
1  [ 0 , 134 ][  27 ,  42 ]
2  [ 27 , 134 ][  40 ,  42 ]
3  [ 40 , 134 ][  131 ,  42 ]
4  [ 40 , 131 ][  66 ,  42 ]
5  [ 40 , 66 ][  43 ,  42 ]
6  [ 40 , 43 ][  42 ,  42 ]