Casting in Python

Garlinsk_code — Wed, 28 May 2025 05:47:21 +0000

** Casting** is known as type conversion, the process involves changing a variable's data type from one type to another. This process ensures operations can be performed correctly and that data is used as intended.
Python supports 2 main types of casting;

1. Implicit casting

Python interpreter automatically does this type of casting, for instance, when an arithmetic operation between an integer and a float takes place, Python will automatically convert the integer to a float before performing the calculation.

2. Explicit casting

This type of casting is done manually by the programmer using built-in functions.
Common functions are;

int(): converts value to an integer
float(): converts value to a floating point number
str(): converts value to a string
bool(): converts value to boolean

`x = 7 # x is an integer
y = "14" # y is a string

z = x + int(y) # Explicitly casting y to an integer before adding it to x
print(z) # Output: 21`

NOTE: Casting can lead to loss of precision; converting a float to an integer shortens the decimal part.

DEV Community: Garlinsk_code

Casting in Python

1. Implicit casting

2. Explicit casting

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