int() in Python is a built-in function that returns the corresponding integer object of passed number or string as a parameter.
Syntax:
int(object, base)
int() Parameters
object [optional] – Any object like integer, float, string, etc that need to be converted to integer.
base [optional] – Base value for the conversion.
If no argument is passed then int() returns 0 as a result.
base is required only for string object passed as the first argument. For numbers, the default base value is 10.
Python int() Examples
Example 1: passing Integers
>>> print(int()) 0 >>> print(int(2)) 2 >>> print(int(15)) 15
Example 2: passing Floating Numbers
>>> print(int(2.6)) 2 >>> print(int(6.1)) 6
Example 3: passing String
If base not specified, by default it would be 10.
>>> print(int('111'))
111
#binary to decimal
>>> print(int('111',2))
7
#binary to octal
>>> print(int('111',8))
73
Example 4: passing Binary
To pass binary, prefix it with 0b or 0B. Do not pass any argument for base otherwise it will throw error because base is only used with string object.
>>> print(int(0b111)) 7 >>> print(int(0b101)) 5
Example 5: passing Octal
To pass Octal prefix it with 0c or 0C.
#octal to decimal >>> print(int(0o111)) 73 >>> print(int(0o10) 8
Example 5: passing Hexadecimal
To pass Hexadecimal prefix it with 0x or 0X.
#hexadecimal to decimal >>> print(int(0x10) 16 >>> print(int(0x101)) 257
So, use int() to convert any numbers or string into an integer if possible in Python.
If you have any doubts or suggestion then comment below.