Hello friend again. I confused by Sum two sample list. I want to only corresponding member be added to each other. You can see the pic. But i cant do that. Do you have solution for that? [IMG_20250101_204901_269] [IMG_20250101_204856_488]

@f.saeedian you will need some kind of zip function [image] lis1 = IN[0] lis2 = IN[1] lis3 = [] for sublist1, sublist2 in zip(lis1, lis2): for i, val2 in enumerate(sublist2): lis3.append([val2 + val1 for val1 in sublist1]) OUT= lis3

thats great and work , but I want to use that for determine point distance, can you help me how I can do that by python script? [111111111111111111111111111]

Hi, You add import clr clr.AddReference('ProtoGeometry') from Autodesk.DesignScript.Geometry import * Geometry.DistanceTo(val1,val2) Cordially Christian.stan

thanx alot Mr. @christian.stan that is true , [5446]

thank you for the compliment, all the credit goes to Mr. Andreas, a natural hard worker (also a beer on the terrace from time to time, the good Dynamo spirit) the training provided by Mr. Erick Frits seems to have made him progress a lot Also no subliminal message Sincerely christian.stan

@christian.stan thats true Erik Fritz is my mentor. :smile: it boosted my understanding how code works in the field. :raised_hands:

I see this was already solved here. nevertheless it was a nice little problem for me to work on. while I’m here I wonder if anyone has some sort of workbook to practice python on dynamo and revit problems like this. I have started my python journey and it would be great to work on some practice prob…

Sum only Corresponding Member

Revit

Draxl_Andreas January 2, 2025, 7:27am 9

@rajeshjamariya16

Learning advice - Dynamo

and this community here

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Add corresponding values of two equal length lists Packages	3	626	August 16, 2015
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Add values from two lists Revit	3	477	February 15, 2021
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Sum only Corresponding Member

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