convert string rep of hexadecimal into actual hexadecimal

Question

Possible Duplicate:
how to parse hex or decimal int in Python

i have a bunch of Hexadecimal colors in a database stored as strings.

e.g. '0xFFFF00'

when i get them from the database i need to convert this string into an actual hexadecimal number, so

0xFFFF00

how can i do this in python

Duplicate of: http://stackoverflow.com/questions/604240/how-to-parse-hex-or-decimal-int-in-python — Trevor Tippins, Aug 20 '10 at 22:37
@Trevor Tipins: Well found, and the top voted answer there is a trick I didn't know about, with the 0 radix! — Mark Byers, Aug 20 '10 at 22:41

score 5 · Accepted Answer · answered Aug 20 '10 at 22:38

5

This is one way to do it:

>>> s = '0xFFFF00'
>>> i = int(s, 16)
>>> print i

answered Aug 20 '10 at 22:38

Mark Byers

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leoluk · Answer 2 · 2010-08-20T22:50:45.533

0

hex(int('0xFFFF00', 16))

edited Aug 20 '10 at 22:50

answered Aug 20 '10 at 22:40

leoluk

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This gives exactly the same string, just lowercased -- what do you mean "will do it"?! – Alex Martelli Aug 20 '10 at 22:45
Probably not the best expression; I didn't see the answer above when I wrote it – leoluk Aug 20 '10 at 22:50

Tony Veijalainen · Answer 3 · 2010-08-21T07:37:12.770

0

Also this works

number = int('0xFFFF00',0)
print("%x follows %x" % (number+1, number))

0 argument tells interpreter to follow the Python rules of numbers to decide the used format of number so this expression will work right for all numbers.

edited Aug 21 '10 at 07:37

answered Aug 21 '10 at 06:30

Tony Veijalainen

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convert string rep of hexadecimal into actual hexadecimal

3 Answers3