"[EMAIL PROTECTED]" <[EMAIL PROTECTED]> writes: > > How does a useless generator expression make it more generic? > > xrange is only picked as an example. I may be newbie on python but not > that dumb if all I want is a list of integer(sorted) that meets certain > criteria. > > takewhile(p, (x for x in > some_function_that_could_potentially_generate_a_long_list_of_elements_but_first_element_that_meets_the_condition_can_come_fast(*args,**kwargs)))
The generator expression is useless in that example too. some_function... has to return an iterator, not a list, if you don't want it to use a pile of memory. And if it returns an iterator, the generator expression is redundant. You can pass the iterator directly to takewhile. -- http://mail.python.org/mailman/listinfo/python-list
