["python","string","hex"]
Convert hex string to integer in Python

How do I convert a hex string to an integer? "0xffff" ⟶ 65535 "ffff" ⟶ 65535
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 (You must specify 0 as the base in order to invoke this prefix-guessing behavior; if you omit the second parameter, int() will assume base-10.)