[Zope] sort in python script dynamically?

[Jaroslav Lukesh]

Andreas Jung wrote:
> Python: somelist.sort(cmpmethod)
> Zope: sequence.sort()
> 
> Both methods are well documented.

Hi Andreas,

I am not big pythonist, just little beginner and I was think that object 
  language was able to do

	for i in self.objectItems('Folder').sort()

But it does not. So I was try

ids = self.objectIds('Folder')
ids = ids.sort()
for i in ids :

TypeError: object of type 'string' is not callable

But I was get following tip:

a=context.objectItems()
a.sort(lambda x,y: cmp(x[0],y[0]))
for i in a:

And that works fine. But I absolutelly does not understand to that. And 
my ideas about object programming was get one big hole.

Thanks to all which helps me.

Best Regards,

JL.

>> I have python script that does
>>
>> for i in self.objectItems('Folder')
>>
>>
>> I want to sort by value of i[0] before "i" is taken to FOR. So it is
>> possible to do something like
>>
>>
>> for i in self.objectItems('Folder').sort(i[0])

>> Under Zope DTML it is very easy:
>>
>>      <dtml-in "objectItems('Folder')" sort=id>
>>
>> But under python?