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+1

lista de lista

hola, por fa me podran ayudar con esto: [1,2,['a','b'],[10]]) debe retornar [1,2,'a','b',10] como separo cada elemento en un elemento unico?????

8/7/2022 6:00:35 PM

Pablo Castro

3 Answers

New Answer

+8

Pablo Castro , here some thoughts how the task can be done: (i would not recomnend you to use chain, until you are familiar with it) instead of this we can have a simple code with 2 for loops. this code can solve 1 level of nesting like: [1,2,['a','b'],[10]] if there are more nested levels to flatten, we need an other approach - let's say we have an input of: [1,2,['a','b'],[10]] - to store the final result we need an empty list like result - we start a for loop (outer loop) - we have to check the type of each element coming from the outer loop - if the type of the element is NOT a list, add it to the result list - otherwise use a second for loop (inner loop) - take each element coming from the inner loop and add it to the result list - print the result list

+6

please show your attempt. link your code here.

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def from_iterable(iterables): # chain.from_iterable(['ABC', 'DEF']) --> A B C D E F for it in iterables: for element in it: yield element from_iterable([[1,2,[3]],[4]]) <generator object from_iterable at 0x000000679D16D190> def chain(*iterables): # chain('ABC', 'DEF') --> A B C D E F for it in iterables: for element in it: yield element chain(*[[1,2,[3]],[4]]) <generator object chain at 0x000000679D16D9E0>