PCEP Computer Programming and Python Fundamentals Practice Question

A developer writes a function that modifies a global variable inside the function:

count = 0

def increment():

count += 1

When called, an error occurs. What is the correct way to fix this?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Use 'global count' inside the function

To modify a global variable inside a function, the global keyword must be used to declare the variable as global.

Answer analysis

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Define count inside the function
Why it's wrong here
Defining count locally would create a new local variable, not modify the global.
✗
Use the 'static' keyword
Why it's wrong here
Python has no static keyword for variable scope.
✗
Pass count as an argument to the function
Why it's wrong here
Passing as argument would not alter the original global variable unless reassigned and returned.
✓
Use 'global count' inside the function
Why this is correct
The global statement allows the function to modify the global variable.

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