How to convert binary number to decimal with python

In this guide, we will show you a short script that can be used to convert a binary number to a decimal number in Python on Linux. This script uses casting which is used to convert a variable from one type to another. In this case, we use Python casting to convert a string to decimal number that is an integer.

Check out the script below to use it on your own system.

In this tutorial you will learn:

• How to convert binary number to decimal with Python

Converting a binary number to decimal via Python script in Linux

Python Script

When you attempt to use casting to convert a variable type to integer, make sure that your variable input type is a string.

Without further ado, here is the Python script. Copy and paste the section below into a new file on your computer.

#!/usr/bin/env python

while True:
    try:
        # Try to convert bunary to decimal
        decimal_num = int(raw_input("Enter a binary number: "), 2)
        # If we fail we ask again user to enter binary number
    except ValueError:
        print "Your input is not a binary number! Please try again."
    else:
        # Exit program if the conversion from binary to decimal was successful
        break
# print converted decimal number
print decimal_num

Save your script, for example with name binary2decimal.py, then make it executable and run the script:

$ chmod +x binary2decimal.py
$ ./binary2decimal.py

Converting a binary number to decimal via Python script in Linux

That’s all there is to it. Now you will have an easy time converting binary numbers to decimal integers with Python.