What does 'in' operator do in Python?

In Python, in and not in operators are called membership operators. Their purpose is to check if an object is a member of a certain sequence object like string, list, or tuple. The in operator returns true if object is present in sequence, false if not found

>>> 'p' in 'Tutorialspoint'
True
>>> 'c' in 'Tutorialspoint'
False
>>> 10 in range(0,5)
False