On Sun, Oct 16, 2016 at 3:29 PM, Alireza Rafiei email@example.com wrote:
What I ended up doing is:
count_list = sorted(count_list, key=lambda x: (x, map(lambda x: -x, map(ord, x))), reverse=True)
which works. Now my solution is very specific to structures like [(str, int)] where all strs are lower case and besides ord makes it to be both limited in use and also more difficult to add extra levels of sorting.
Interesting. Personally, I would invert this; if you're sorting by an integer and a string, negate the integer, and keep the string as-is. If that doesn't work, a custom class might help.
# untested class Record: reverse = False, True, True, False, True def __init__(data): self.data = data def __lt__(self, other): for v1, v2, rev in zip(self.data, other.data, self.reverse): if v1 < v2: return rev if v2 > v1: return not rev return False
This is broadly similar to how tuple.__lt__ works, allowing you to flip the logic of whichever ones you like.