sorting a list

[Thorsten Kampe]

* ketulp_baroda at yahoo.com (2004-03-10 01:13 +0100)
> I want to sort a list.
> My problem is:
> 
>>>> a=['a','f','F','A','D']
>>>> a.sort()
>>>> a
> ['A','D', 'F', 'a', 'f']
> 
> But I am actually looking for an output:
> ['A','a','D','F','f']
> 
> Is there any module to sort a list this way?

You need a general approach:

def funcsort(seq, func):
    """ sort seq by func(item) """
    seq = seq[:]
    seq.sort(lambda x, y: cmp(func(x), func(y)))
    return seq

funcsort(a, lambda x: ord(x.upper()) + x.islower()/2.0)


Thorsten