##### Making lists using itertools and eliminating duplicates.
 Making lists using itertools and eliminating duplicates. mike3891 Unladen Swallow Posts: 2 Threads: 1 Joined: Oct 2020 Reputation: Oct-26-2020, 04:30 PM (This post was last modified: Oct-26-2020, 04:30 PM by mike3891.) I'm trying to get all combinations of the following numbers as long as they don't total over 50,000 and must be in combos of 6. From there I want to condense into a new list that has no duplicates even if they're are out of order (ex: [8000, 9300, 7000, 8800, 7400, 9200] would be eliminated if [8800, 7400, 9200, 8000, 9300, 7000] was already in the list). I think my code is correct but it is taking forever for the ouput to load in PyCharm. For now, I'm just looking to see if the len of the lists will be different to see if it is worth eliminating duplicates. Sorry but I don't know how to get it to hold the indents when I post. import itertools num = { 9200, 8200, 7600, 9100, 7400, 8900, 7900, 7500, 7700, 6800, 9300, 9000, 7000, 8000, 8600, 7100, 8800, 7300, 8300, 8700, 8500, 9400, 6900, 7200 } entry = [] for i in num: for combination in itertools.combinations(num, 6): if sum(combination) <= 50000: entry.append(combination) non_dup = [] for i in entry: if i not in non_dup: non_dup.append(i) print("Entry list: " + str(len(entry))) print("Non-Dup list: " + str(len(non_dup))) Reply mike3891 Unladen Swallow Posts: 2 Threads: 1 Joined: Oct 2020 Reputation: Oct-26-2020, 04:45 PM Figured it out. Sorry, I don't know how to delete a post. print(len(list(set(entry)))) Reply bowlofred Da Bishop Posts: 1,119 Threads: 3 Joined: Mar 2020 Reputation: Oct-26-2020, 05:39 PM You use bbcode "python" tags around your code in the post to display properly. You can click the Python logo button above the editor to insert them automatically. If you just need the size of the set, you don't have to convert it to a list. `len()` works just fine on sets, so `print(len(set(entry)))`should be sufficient. If you don't need the ordering, you could just create `non_dup` as a set in the first place and then add objects to it (rather than append them). Reply

 Possibly Related Threads… Thread Author Replies Views Last Post Eliminating error in Python update-alternatives Led_Zeppelin 2 310 Apr-14-2021, 12:49 PM Last Post: Led_Zeppelin Removal of duplicates teebee891 1 264 Feb-01-2021, 12:06 PM Last Post: jefsummers eliminating letters when typed in python window deebo 0 225 Jan-05-2021, 09:26 AM Last Post: deebo What happens to a after it is read? Pedroski55 3 320 Nov-29-2020, 08:35 AM Last Post: DeaD_EyE Displaying duplicates in dictionary lokesh 2 418 Oct-15-2020, 08:07 AM Last Post: DeaD_EyE Python3 itertools.groupby printing the key august 1 537 Aug-17-2020, 05:46 AM Last Post: bowlofred Generate Cartesian Products with Itertools Incrementally CoderMan 2 484 Jun-04-2020, 04:51 PM Last Post: CoderMan itertools.zip_shortest() fo unequal iterators Skaperen 10 1,702 Dec-27-2019, 12:17 AM Last Post: Skaperen how do i pass duplicates in my range iterator? pseudo 3 752 Dec-18-2019, 03:01 PM Last Post: ichabod801 Deleting duplicates in tuples Den 2 1,268 Dec-14-2019, 10:32 PM Last Post: ichabod801

Forum Jump:

### User Panel Messages

##### Announcements
Announcement #1 8/1/2020
Announcement #2 8/2/2020
Announcement #3 8/6/2020