hi simon thanks for your reply
what if i want to do this
feed_list=[]
feed_id=[]
for ix in feeds_list_select:
global feeds_list
global feeds_id
feeds_list.append(ix.url)
feeds_id.append(ix.id)
ie not one variable but more variables
thanks
Simon Forman wrote:
> a wrote:
> > can someone tell me how to use them
> > thanks
>
> basically, a list comprehension is just like a for loop, if you wrote
> it out the "long way" it would be something like this:
>
> results = []
> for var in some_iterable:
> if some condition:
> results.append(some expression)
>
>
> The list comprehension version:
>
> results = [some expression for var in some_iterable if some condition]
>
>
> There's more to it, but that's the basic idea.
>
> Hope this helps,
> ~Simon
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