May-22-2019, 01:42 AM
i have multiple ranges i wish to iterate over. but the obvious solution (2 nested levels of iteration) is not available because the iteration code, which may be in a function, expects one iterator and iterates over that with just a single level (this code cannot be changed). producing a list from all the ranges and passing the list as the one iterator would work, but i want to avoid that in the list is so large it causes swapping. do i need to make a generator do this or is there a better way?
in one use case, the last range is effectively infinite, intend to make that one level iteration run "forever".
in one use case, the last range is effectively infinite, intend to make that one level iteration run "forever".