coin flip

[realNewbie]

I am creating a python program that will flip a coin 100 times and then tells you the number of heads and tails. This is for a class I am taking, I am not looking for the answer. I have already started writing the program, but something is missing because it will not run...can someone let me know if they can see my error?

import random
heads=0
tails=0
count=1
while count <101:
randomFlip = random.randrange(0,1)
if randomFlip == 0:
heads = heads + 1
else:
tails = tails + 1
count = count + 1
print heads," heads"
print tails," tails"

[boxfish]

I see two things wrong with the code you have there. One is that not all the code in the while loop is indented enough. You need to have it be:

while count <101:
    randomFlip = random.randrange(0,1)
    if randomFlip == 0:
        heads = heads + 1
    else:
        tails = tails + 1
    count = count + 1
 

Indent everything inside the loop, and if something is inside an if statement inside of a loop, it has to be indented twice.

The other thing is that random.randrange(0,1) will not pick either zero or one. It will choose a random integer that is greater than or equal to zero, but less than one. Not much of a choice. Your program picks all heads. Make it pick a random integer that is greater than or equal to zero but less than 2 with random.randrange(2).

And when you are posting code, please put [CODE] before it and [/CODE] after it, so it shows up in a nice little box.

Hope this helps.

[realNewbie]

Thanks for your input...it helped a lot!

[freddukes]

Maybe you could look into the random.randint() function... play about with it in IDLE.

>>> import random
>>> help(random.randint)
Help on method randint in module random:
 
randint(self, a, b) method of random.Random instance
    Return random integer in range [a, b], including both end points.
 

-freddukes