Ages ago I got this code from this forum and it’s always worked well. It still works well with numbers but if I feed it stings it crashes. Any idea why? [image] # Load the Python Standard and DesignScript Libraries import sys import clr import collections def flattenList(unflattened_list): …

It’s a recursive function and it goes recursively every time the statement if isinstance(unflattened_list,collections.Iterable) is true. This will always be true for strings since they are iterable unlike integers. So try changing this statement for something like: if isinstance(unflattened_list,co…

it is also possible to avoid the use of the collections method, this way you’re safe every time you flat a list: lst_flatten = lambda lst: [i for sub in lst for i in lst_flatten(sub)] if isinstance(lst, list) else [lst] [Immagine 2022-02-19 233504]

Hi @Alien maybe you can try with DSCore [image] from [image] Use the Flatten node in python script DesignScript Hi Hannes, You need to import DSCore for DesignScript nodes to work and then use it like this, where the second argument is the amount of levels to flatten: …

Flatten in Python - breaking

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paris February 20, 2022, 12:29am 4

Hi @Alien maybe you can try with DSCore

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Flatten in Python - breaking

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