Trying to change int value inside function in Python

Question

I am new to Python and I am trying to change the value of an integer while inside of a function. Is there an easy way to do this? I haven’t been able to find much on the subject. Here is my base code.

i = 0
numbers = [2, 7, 8, 14, 15, 38, 27, 9, 77, 10]

print("the value of [5] before the function call is " + str(numbers[5]))

def printArray(numbers, i):
    numbers[5] = 48
    numbers[0] = 50
    
    for x in numbers:
        print(x)
    
    i = 50
    
printArray(numbers, i)

print("The new value of i is " + str(i))

Asked By: ClaytonTK

||

Source

Answer 1

def printArray(numbers, i):
    ...
    i = 50

This creates i as a new local variable inside the function. It does not, as you found, change the value of i in the caller.

Either make i a global variable, or return a value from the function and assign i to that value in the caller.

Answered By: John Gordon

Trying to change int value inside function in Python

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