##### user input values into list of lists
 user input values into list of lists tauros73 Unladen Swallow Posts: 2 Threads: 1 Joined: Dec 2022 Reputation: Dec-29-2022, 11:13 AM I have the following code : ```import itertools from functools import reduce CountOfCombination= 0 for i in itertools.product((1,2),(1,2,0),(1,2)): CountOfCombination += 1 print('For combination {0} is product of values {1} and sum{2}'.format(i, reduce(lambda a, b: a*b,i),reduce(lambda a, b : a+b,i))) print ('Count of combination is {0}'.format(CountOfCombination))```I would like to populate a variable for the cartesian product via user input, something like this : ```import itertools cont = "" index = 0 a=[] while (cont != "N"): tips = input("Input combination : ") for i in range(len(tips)): a[index][i] = tips[i] index += 1 cont = input("Contiune? [Y/N]")```where a[] would replace `(1,2),(1,2,0),(1,2)` Reply Posts: 6,206 Threads: 16 Joined: Feb 2020 Reputation: Dec-29-2022, 01:21 PM ```conbinations = [] while True: if combination := input("Input the combination: "): combination = list(map(float, combination.split())) conbinations.append(combination) else: break print(conbinations)`````````Output:Input the combination: 1 2 Input the combination: 1 2 0 Input the combination: 1 2 Input the combination: [[1.0, 2.0], [1.0, 2.0, 0.0], [1.0, 2.0]]`````` Reply tauros73 Unladen Swallow Posts: 2 Threads: 1 Joined: Dec 2022 Reputation: Dec-29-2022, 04:29 PM (This post was last modified: Dec-29-2022, 04:48 PM by Yoriz. Edit Reason: removed unnecessary quote of previous post ) it's not working the way I need it to. ```import itertools from functools import reduce conbinations = [] while True: if combination := input("Input the combination: "): combination = list(map(float, combination.split())) conbinations.append(combination) else: break CountOfCombination= 0 for i in itertools.product(conbinations): CountOfCombination += 1 print('For combination {0} is product of values {1} and sum{2}'.format(i, reduce(lambda a, b: a*b,i),reduce(lambda a, b : a+b,i))) print ('Count of combination is {0}'.format(CountOfCombination))`````````Output:/usr/bin/python3.10 /home/tauros/PycharmProjects/jaggedArray/venv/test1.py Input the combination: 1 2 Input the combination: 1 0 2 Input the combination: For combination ([1.0, 2.0],) is product of values [1.0, 2.0] and sum[1.0, 2.0] For combination ([1.0, 0.0, 2.0],) is product of values [1.0, 0.0, 2.0] and sum[1.0, 0.0, 2.0] Count of combination is 2 Process finished with exit code 0``````I need this result : ``````Output:For combination (1, 1) is product of values 1 and sum 2 For combination (1, 0) is product of values 0 and sum 1 For combination (1, 2) is product of values 2 and sum 3 For combination (2, 1) is product of values 2 and sum 3 For combination (2, 0) is product of values 0 and sum 2 For combination (2, 2) is product of values 4 and sum 4 Count of combination is 6 Process finished with exit code 0`````` Reply Posts: 6,206 Threads: 16 Joined: Feb 2020 Reputation: Dec-29-2022, 05:54 PM `for i in itertools.product(*conbinations)` Reply

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