On 25 mar, 08:43, "bullockbefriending bard" <[EMAIL PROTECTED]>
wrote:
> Given:
>
> class Z(object):
> various defs, etc.
>
> class ZList(list):
> various defs, etc.
>
> i would like to be able to replace
>
> z_list = ZList()
> for y in list_of_objects_of_class_Y:
> z_list.append(y)
>
> with something like this:
>
> z_list = [Z(y.var1, y.var2,..) for y in list_of_objects_of_class_Y]
>
> Of course this just gives me a plain list and no access to the
> methodsof z_list. I could, of course go and write a static method in
> ZList which takes a plain list of Z objects and returns a ZList.
>
> Anyway, my question is whether or not this can be done more elegantly
> via list comprehension?
Hello,
A list comprehension will give you a list. But you can use a generator
expression :
z_list = ZList(Z(y.var1, y.var2,..)
for y in list_of_objects_of_class_Y)
Regards,
Pierre
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