Type casting in Python  

 

 

Type Casting is the method to convert the Python variable data type into a certain data type in order to perform the required operation by users. In this article, we will see the various techniques for typecasting.

There can be two types of Type Casting in Python:

• Python Implicit Type Conversion

• Python Explicit Type Conversion

 

 

Implicit Type Conversion in Python

In this, method, Python converts the data type into another data type automatically. Users don’t have to involve in this process.

Example of implicit type conversion 

integer_number = 123

float_number = 1.23

 

new_number = integer_number + float_number

 

# display new value and resulting data type

print(“Value:”,new_number)

print(“Data Type:”,type(new_number))

Output 

Value: 124.23

Data Type: <class ‘float’>

 

Explicit Type Conversion

In Explicit Type Conversion, users convert the data type of an object to required data type.

 

We use the built-in functions like int(), float(), str(), etc to perform explicit type conversion.

 

This type of conversion is also called typecasting because the user casts (changes) the data type of the objects.

 

Example of Explicit type conversion

num_string = ’12’

num_integer = 23

 

print(“Data type of num_string before Type Casting:”,type(num_string))

 

# explicit type conversion

num_string = int(num_string)

 

print(“Data type of num_string after Type Casting:”,type(num_string))

 

num_sum = num_integer + num_string

 

print(“Sum:”,num_sum)

print(“Data type of num_sum:”,type(num_sum))

Output

Data type of num_string before Type Casting: <class ‘str’>

Data type of num_string after Type Casting: <class ‘int’>

Sum: 35

Data type of num_sum: <class ‘int’>