Ben Finney wrote:
> mosscliffe <[EMAIL PROTECTED]> writes:
>
>> I have tried the following, for a one dimensional list and it works,
>> but I can not get my head around this lambda. How would this be
>> written, without the lamda ?
>>
>> mylist = ['Fred','bill','PAUL','albert']
>>
>> mylist.sort(key=lambda el: el.lower())
>
> Here's a hint:
>
> >>> "FoO".lower()
> 'foo'
> >>> str.lower("FoO")
> 'foo'
But be aware that you lose both the ability to override and duck-typing:
>>> print r # derived from str
Upper East Side
>>> print s # unicode
München
>>> r.lower(), str.lower(r)
('Lower East Side', 'upper east side')
>>> s.lower(), str.lower(s)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: descriptor 'lower' requires a 'str' object but received a
'unicode'
Peter
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