'How to convert list object to string list [duplicate]

I have problem with converting

[['a'],['b'],['c']] --> ['a','b','c']

it seems simple but I am struggling for hours...

python string

Solution 1:^[1]

You could use a list comprehension to do something as simple as

[element[0] for element in letters_list]

This remakes the list, extracting the 0-index element from each sublist

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Solution	Source
Solution 1	Azarro