Python | Ways to convert hex into binary

Conversion of hex to binary is a very common programming question. In this article, we will see a few methods to solve the above problem.

Method #1: Using bin and zfill

 `# Python code to demonstrate  ` `# conversion of a hex string ` `# to the binary string ` ` `  `# Initialising hex string ` `ini_string ``=` `"1a"` `scale ``=` `16` ` `  `# Printing initial string ` `print` `(``"Initial string"``, ini_string) ` ` `  `# Code to convert hex to binary ` `res ``=` `bin``(``int``(ini_string, scale)).zfill(``8``) ` ` `  `# Print the resultant string ` `print` `(``"Resultant string"``, ``str``(res)) `

Output:

Initial string 1a
Resultant string 00b11010

Method #2: Using Naive Method

 `# Python code to demonstrate  ` `# conversion of hex string ` `# to binary string ` ` `  `import` `math ` ` `  `# Initialising hex string ` `ini_string ``=` `"1a"` ` `  `# Printing initial string ` `print` `(``"Initial string"``, ini_string) ` ` `  `# Code to convert hex to binary ` `n ``=` `int``(ini_string, ``16``)  ` `bStr ``=` `'' ` `while` `n > ``0``: ` `    ``bStr ``=` `str``(n ``%` `2``) ``+` `bStr ` `    ``n ``=` `n >> ``1`     `res ``=` `bStr ` ` `  `# Print the resultant string ` `print` `(``"Resultant string"``, ``str``(res)) `

Output:

Initial string 1a
Resultant string 11010

Method #3: Using .format

 `# Python code to demonstrate  ` `# conversion of hex string ` `# to binary string ` ` `  `import` `math ` ` `  `# Initialising hex string ` `ini_string ``=` `"1a"` ` `  `# Printing initial string ` `print` `(``"Initial string"``, ini_string) ` ` `  `# Code to convert hex to binary ` `res ``=` `"{0:08b}"``.``format``(``int``(ini_string, ``16``)) ` ` `  `# Print the resultant string ` `print` `(``"Resultant string"``, ``str``(res)) `

Output:

Initial string 1a
Resultant string 00011010

My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.

Article Tags :

Be the First to upvote.

Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.