Convert Hex String to Int in Python - Python - Professional & Enthusiast Programmers - FAQoverflow - Great Answers to Questions About Everything

QUESTION

How do I convert a hex string to an int in Python? I may have it as "0xffff" or just "ffff".

{ asked by Matt }

ANSWER

Without the 0x prefix, you need to specify the base explicitly, otherwise there's no way to tell:

x = int("deadbeef", 16)

With the 0x prefix, Python can distinguish hex and decimal automatically:

>>> print int("0xdeadbeef", 0)
3735928559
>>> print int("10", 0)
10

{ answered by Dan }