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re.findall() solution in Uncategorized category for Flatten a List by vadim.kashko
import re
def flat_list(array):
return [int(i) for i in re.findall('-\d+|\d+', array.__str__())]
if __name__ == '__main__':
assert flat_list([1, 2, 3]) == [1, 2, 3], "First"
assert flat_list([1, [2, 2, 2], 4]) == [1, 2, 2, 2, 4], "Second"
assert flat_list([[[2]], [4, [5, 6, [6], 6, 6, 6], 7]]) == [2, 4, 5, 6, 6, 6, 6, 6, 7], "Third"
assert flat_list([-1, [1, [-2], 1], -1]) == [-1, 1, -2, 1, -1], "Four"
print('Done! Check it')
Feb. 5, 2019
