Maintainability

Maintainability

Maintainable code is easy to read, update, and debug – even by someone else.
Use of subprograms:
- Break code into functions or procedures.
- Each does one clear task.
- Makes the code reusable and easier to test.

def get_user_input():

name = input(“Enter your name:”)

return name

Naming conventions:
- Use meaningful names for:
  - Variables (user_name, total_score)
  - Subprograms (calculate_tax, check_password)
- Avoid: x, abc, thing1 (unless used temporarily or in loops).
Indentation:
- Shows which code belongs inside loops, conditions, or subprograms.
- Python requires indentation (usually 4 spaces).
- Helps with logic clarity and avoiding syntax errors.

if score > 10:

print(“High score”)

Commenting:
- Comments explain the code, especially what it does and why something was done a certain way.
- Good comments help other programmers (and your future self).

# To calculate total price with tax

def calculate_total(price):

return price * 1.2

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