On Wed, Apr 23, 2008 at 9:08 PM, Jared Grubb <[EMAIL PROTECTED]> wrote:
> I guess I forgot one requirement: the removed elements need to be > remembered. > > Basically, I have a list of objects in a buffer, one class operates on > some of the objects, but other classes use others. So, a class must extract > the ones it can handle, and leave the rest in the buffer for the other > classes to handle. > > I haven't found a function that will both remove objects from a list, but > save the ones that do get removed. > > Jared > > On 23 Apr 2008, at 10:15, Tim Golden wrote: > > Jared Grubb wrote: > > I want a function that removes values from a list if a predicate evaluates > to True. The best I could come up with is: > > > Have a look at the itertools module, and the ifilter function > in particular. > > TJG > -- > http://mail.python.org/mailman/listinfo/python-list > > > > -- > http://mail.python.org/mailman/listinfo/python-list > I would do it like this: # This takes out the values extracted = [ obj for obj in lst if pred(obj) ] # This filters out any item that was extracted lst = [ obj for obj in list if obj not in extracted ] Brian
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