Functions

• Use a good representation name
• Use underscore to separate
• Use type hints
• Do not use camel case
• Do not use special symbols
• Do not use capital letters

✅ Do

def sum_numbers(x: int, y: int) -> int:
    ...

❌ Don't

def sum_numbers(x, y):
    ...

def sumNumbers(x: int, y: int) -> int:
    ...