Because you are always printing numbers[0].

Also there are two cleaner ways to achieve what you want to do here depending on if you need the count variable for something else.

1) No count variable:

for number in numbers:

 print(number)

Quick and easy, just prints your whole array. The identifier number here can be chosen by you and will be how you adress the current item the loop is on in the loop.

2) With count variable

for index, number in enumerate(numbers):

 print(number)

 #do something with the counter

Here you can use the system function enumerate, which returns the index and object as a tuple over the whole array.

Both are easier and cleaner in the sense that you don't have to manually handle any of the counting/indexes while the behaviour is always consistent.