Ellipsis

Use ... (Ellipsis), an alternative to pass.

def main():
    ...

if True:
    ...

single line return

For single line utility functions use, single line return statement.

def greet(): return "Welcome!"

def todo(): ...

Document Your Functions

To get proper documented Classes or functions with auto-completion define types of parameters and return types

def rectangle_area(l: float, b: float) -> float:
    area = l * b
    return area

Clever use of type() method

Call type function to know default value of any datatype.

>>> type(512)()
0
>>> type(True)()
False

Also, Use for type checking

>>> type('Apple') == str
True
>>> type([1, 2, '3']) == list
True

Thanks and Cheers
RajeshJ3