Type Conversion and Type Casting in Python

In this class, we discuss type conversion and type casting in python.

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Type Conversion

Before going to discuss Type conversion. We should have an idea about operators. Please click here.

Let’s take an example and understand type conversion.

a=1

b=5.0

c= a+b

print(c)

From the above program, a is an integer type. b is a floating type.

c = a+b automatically c is assigned with the floating-point data type.

Float is of the higher type so this type of conversion happens implicitly by python.

Take one more example.

a=1

b=5+2j

c=a+b

a is of type int, and b is of type complex.

int will automatically convert to complex. ie 1+0j.

So c will be a complex type.

Take one more example where type conversion is not possible.

a=1

b=”25″

c=a+b

Is it possible to do addition on strings and integers?

No.

Here type conversion is not done.

Typecasting comes here.

Type Casting

Explicitly doing conversion is called type casting.

Example:

a=1

b=”25″

b= int(b)

c= a+b

print(c)

In the above program, we are converting the b value from string to int data type.

We use the function int to do this typecasting.

One more example of typecasting.

a=1

b=25.8

b= int(b)

c= a+b

print(c)

We are converting float to integer data type.

The integer part will only be considered here.

b will have the value of 25. The floating part is removed.

The output is 26.

List of Type Casting functions.