get a list printed in hexadecimal notation

[Bengt Richter]

On 24 Jul 2002 16:41:18 +0200, Andreas Kostyrka <andreas at kostyrka.priv.at> wrote:

>Am Fre, 2002-07-19 um 08.19 schrieb Oliver Eichler:
>> Bengt Richter wrote:
>> 
>> >  >>> l = ('spam',10,15,'more spam',['nested',65535,'spam'],'spam',255)
>> >          ^                                   ^^^^^                   ^
>> >  >>> print  [isinstance(x,int) and hex(x) or x for x in l]
>> >  ['spam', '0xa', '0xf', 'more spam', ['nested', 65535, 'spam'], 'spam',
>> >  ['0xff']
>> 
>> I never do such complicated things at home ;) But you are right for more 
>> complex lists the one liner won't fit.
>Well it's not efficient, but:
>hexlist=lambda l: [(isinstance(y,list) and hexlist(y)) or y for y in
>[isinstance(x,int) and hex(x) or x for x in l]]
>l = ('spam',10,15,'more spam',['nested',65535,'spam'],'spam',255)
>print hexlist(l)
>
>gives:
>['spam', '0xa', '0xf', 'more spam', ['nested', '0xffff', 'spam'],
>'spam', '0xff']
>
Cool, but did I miss something? why the two for's? E.g., (single line optional ;-)

 >>> hexlist=lambda l: [
 ...     (isinstance(y,list) and hexlist(y)) or
 ...     (isinstance(y,int) and hex(y)) or
 ...     y
 ...     for y in l]
 >>> l = ('spam',10,15,'more spam',['nested',65535,'spam'],'spam',255)
 >>> hexlist(l)
 ['spam', '0xa', '0xf', 'more spam', ['nested', '0xffff', 'spam'], 'spam', '0xff']

Regards,
Bengt Richter