Converting strings to hex

[Dale Strickland-Clark]

Thanks - better than my first attempt - but I think my second attempt using
unpack is neater. :)

--
Dale Strickland-Clark
Out-Think Ltd, UK
Business Technology Consultants

Kris J. Zaragoza <kzaragoza at mediaone.net> wrote in message
news:slrn8i92lv.8cs.kzaragoza at kzaragoza.ne.mediaone.net...
> On Fri, 19 May 2000 01:11:05 +0100, Dale Strickland-Clark
> <dale at out-think.NOSPAMco.uk> wrote:
> >The output from MD5.digest() is a 16 byte binary string.
> >
> >I want to convert it to hex for printing.
> >
> >The hex() function only handles integers (pah!) so I've come up with
this:
> >
> >def wibble(r):
> >    return hex(ord(r))[2:4]
> >
> >a=md5.new(data).digest()
> >string.join(map(wibble, list(a)), "")
> >
> >Which is ugly, at best.
> >
> >Is there a better way?
> >
> >hhmm...
> >
> >I've just discovered unpack and come up with this:
> >
> >"%4X %4X %4X %4X" % struct.unpack(">4i", a)
> >
> >which is certainly shorter!
> >
> >Is this the best I can expect?
> >
> >Thanks
> >
> >--
> >Dale Strickland-Clark
> >Out-Think Ltd, UK
> >
> >
> >
>
> That's funny, I was _just_ playing with this very functionality!
> Here's what I came up with:
>
> def md5ToHex(md5string):
>     import string
>     ret = []
>     for c in md5string:
>         ret.append("%02X" % ord(c))
>     return string.join(ret,"")
>
> Running this:
>
> >>> import md5
> >>> m = md5.new("Foo!").digest()
> >>> m
> "\333h(\246'\355i_\373\201\2445<\342\222n"
> >>> md5ToHex(m)
> 'DB6828A627ED695FFB81A4353CE2926E'
> >>>
>
> Is this what you're looking for?
>
> -Kris
>
> --
> Kris J. Zaragoza           | "Unfortunately, most people can't out-think a
> kzaragoza at mediaone.net     | grapefruit."  --Jon Bodner
>