Python - Type Casting

The type casting is a method of converting the value of one data type to another data type. It is also known as type conversion. Python is an object-orientated language, and it uses classes to define data types. Hence, the type casting can be achieved by using constructor function of given data type class.

• int()- It converts different data types into an integer. Datatypes that can be used with this function are an integer literal, a float literal and a string literal (provided the string represents a whole number).
• float()- It converts different data types into a float number. Datatypes that can be used with this function are an integer literal, a float literal and a string literal (provided the string represents an integer or a float number).
• str()- It converts all data types into a string.

Type Casting to integer data type

In the example below, int() function is used to convert integer literal, float literal and string literal into an integer data type.

x = int(1) print(x) y = int(10.55) print(y) z = int('100') print(z) 

The output of the above code will be:

 1 10 100 

Type Casting to float data type

The example below describes how to use float() function to convert integer literal, float literal and string literal into a float data type.

p = float(1) print(p) q = float(10.55) print(q) r = float('100') print(r) s = float('1000.55') print(s) 

The output of the above code will be:

 1.0 10.55 100.0 1000.55 

Type Casting to string data type

In the example below, str() function is used to convert different data types into string data type.

x = str(10) print(x) y = str(100.55) print(y) z = str('1000') print(z) 

The output of the above code will be:

 10 100.55 1000