A Quick Note on Python Casting

In Python, casting is the process of converting a variable from one data type to another. Python is a dynamically-typed language, but sometimes you need to explicitly convert a variable’s type. This is where casting comes in.

Casting to Integer (int())

You can convert a float or a string to an integer using the int() function. When converting a float, the decimal part is truncated.

x = int(3.14)    # x will be 3
y = int("10")    # y will be 10

print(x)
print(y)

Casting to Float (float())

You can convert an integer or a string to a float using the float() function.

x = float(10)      # x will be 10.0
y = float("3.14")  # y will be 3.14

print(x)
print(y)

Casting to String (str())

You can convert almost any data type to a string using the str() function. This is useful when you want to concatenate a number with a string.

x = str(10)
y = str(3.14)
z = str(True)

print("The value of x is " + x)

Conclusion

Casting is a simple yet powerful feature in Python that allows you to control the data types of your variables. By using functions like int(), float(), and str(), you can ensure that your variables are in the correct format for the operations you want to perform.