Hello, please what is the use of "int" in the py programs?

Answer 1

int is a function which is use to convert string number to integer

For example:

a = "5" it is a string

b = int(a) is is a number

When you take user input then it is bydefault string so you need to cast input with int function to get in number:

a = input()

print (type(a)) # string

b = int(a)

print (type(b)) #integer

Answer 2

int is a class, which can be called like a function to easily convert numeric strings to integers:
int("890") -> 890
int("-7") -> -7
int("4") -> 4

You can also use int to remove decimal parts from floats:
int(5.8) -> 5
int(2.99999) -> 2
int(-3.5) -> -3