computing with characters

Gabriel Genellina gagsl-py2 at yahoo.com.ar
Wed Apr 30 11:56:38 CEST 2008


En Wed, 30 Apr 2008 05:00:26 -0300, Arnaud Delobelle  
<arnodel at googlemail.com> escribió:

> "Gabriel Genellina" <gagsl-py2 at yahoo.com.ar> writes:
>
>> En Wed, 30 Apr 2008 04:19:22 -0300, SL <ni at hao.com> escribió:
>>
>>> "Lutz Horn" <lutz.georg.horn at googlemail.com> schreef in bericht
>>> news:mailman.360.1209537877.12834.python-list at python.org...
>>>>
>>>> So just for completion, the solution is:
>>>>
>>>>>>> chr(ord('a') + 1)
>>>> 'b'
>>>
>>> thanks :) I'm a beginner and I was expecting this to be a member of
>>> string so I couldnt find it anywhere in the docs.
>>
>> And that's a very reasonable place to search; I think chr and ord are
>> builtin functions (and not str methods) just by an historical
>> accident.  (Or is there any other reason? what's wrong with "a".ord()
>> or  str.from_ordinal(65))?
>
>
> Not a reason, but doesn't ord() word with unicode as well?

Yes, so ord() could be an instance method of both str and unicode, like  
upper(), strip(), and all of them...
And str.from_ordinal(n)==chr(n), unicode.from_ordinal(n)==unichr(n)

-- 
Gabriel Genellina




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