Refactored Fibonacci Sequence Code

Language Identified: Python

Refactored Code with Annotations:

def calculate_fibonacci(n):  # Renamed the function for clarity
    if n <= 0:
        return "Input error! Please provide a positive integer."
    elif n == 1:
        return 0
    elif n == 2:
        return 1
    else:
        return calculate_fibonacci(n - 1) + calculate_fibonacci(n - 2)

num_terms = 10  # Changed variable name 'n' to 'num_terms' for better readability
print("Fibonacci sequence up to", num_terms, ":")
for i in range(1, num_terms + 1):
    print(calculate_fibonacci(i), end=" ")  # Indentation adjusted for better code structure

Annotations:

1. Function Name Changed: Renamed the fibonacci() function to calculate_fibonacci() to better describe its purpose.

2. Variable Name Change: Renamed variable n to num_terms for improved readability and to convey its purpose more explicitly.

3. Comments Clarification: Adjusted comments to be more concise and provide clearer context where necessary.

4. Indentation: Ensured consistent indentation for better code structure and readability.

By addressing these points, the refactored code maintains the original functionality while enhancing readability and maintainability.