Q21.

Difference between Python 2 and Python 3?

Q22.

What is __init__ method?

Q23.

What is self in Python?

Q24.

What is inheritance in Python?

Q25.

What is multiple inheritance?

Q26.

What is polymorphism in Python?

Q27.

What is encapsulation in Python?

Q28.

What is abstraction in Python?

Q29.

What are magic methods in Python?

Q30.

What is __str__ and __repr__?