int() function with example in Python

Python int() function: Here, we are going to learn about the int() function in Python with example.
Submitted by IncludeHelp, on April 01, 2019

Python int() function

int() function is used to convert a string (that should contain a number/integer), number (integer, float) into an integer value.

Syntax:

```    int(value, [base=10])
```

Parameter:

• value – source value (string, number(integer/float)) to be converted in an integer value.
• base – it’s an optional parameter with default 10, it is used to define the base of source value, for example: if source string contains a binary value then we need to use base 2 to convert it into an integer.

Return value: int – returns an integer value.

Example:

```    Input:
a = "1001"
print(int(a))

Output:
1001

Input:
a = 10.23
print(int(a))

Output:
10

Input:
a = "1110111"
print(int(a,2))

Output:
119
```

Python code to convert values to an integer

```# python code to demonstrate example
# of int() function

a = 10.20
b = "1001"
c = "000"

print("a: ", a)
print("int(a): ", int(a))

print("b: ", b)
print("int(b): ", int(b))

print("c: ", c)
print("int(c): ", int(c))
```

Output

```a:  10.2
int(a):  10
b:  1001
int(b):  1001
c:  000
int(c):  0
```

Python code to convert different numbers systems (binary, octal and hexadecimal) to integer value (decimal)

```# python code to demonstrate example
# of int() function

a = "10101010"
print("a: ", int(a,2))

a = "1234567"
print("a: ", int(a,8))

a = "5ABC12"
print("a: ", int(a,16))
```

Output

```a:  170
a:  342391
a:  5946386
```

Preparation