What is type hinting in Python? What type hinting is used?

Type hinting in Python is a way to define and check data types that a program works with. Python uses dynamic and strong typing:

• Dynamic typing means that the type of a variable is determined at runtime, not beforehand. A variable can reference objects of different types at different times.

• Strong typing means that operations between incompatible types cause errors, for example, you cannot add a string and a number without explicit conversion.

Example of dynamic typing:

x = 10       # x is an integer
x = 'text'   # now x is a string

Python 3.5+ supports type annotations for static analysis, but they do not affect code execution:

def greet(name: str) -> str:
    return 'Hello, ' + name

Thus, Python combines the flexibility of dynamic typing with the safety of strong typing.