How to Convert Bytes to Hex Strings and Vice Versa in Python 3?

Bytes to Hex String Conversion in Python 3

Converting bytes to a hex string in Python 3 has long been a subject of confusion. This question seeks a clear and straightforward solution.

The original bytes.hex method is no longer accessible in Python versions prior to 3.5. Instead, Python 3.5 introduces a dedicated hex() method for byte sequences:

<br>In [1]: b'xdexadxbexef'.hex()<br>Out[1]: 'deadbeef'<br>

To convert the hex string back to bytes, use the bytes.fromhex() method:

<br>In [2]: bytes.fromhex('deadbeef')<br>Out[2]: b'xdexadxbexef'<br>

This method is also compatible with mutable bytearray types:

<br>In [3]: bytearray(b'xdexadxbexef').hex()<br>Out[3]: 'deadbeef'<br>In [4]: bytes.fromhex('deadbeef')<br>Out[4]: bytearray(b'xdexadxbexef')<br>

For your convenience, here's the complete documentation for the hex() and fromhex() methods:

• https://docs.python.org/3/library/stdtypes.html#bytes.hex
• https://docs.python.org/3/library/stdtypes.html#bytes.fromhex

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