Answers for "concatenate list"

python concatenate list of lists

x = [["a","b"], ["c"]]

result = sum(x, [])

merge lists in list python

import itertools
a = [['a','b'], ['c']]
print(list(itertools.chain.from_iterable(a)))

how to concatenate all list inside list

>>> x = [["a","b"], ["c"]]
>>> [inner
...     for outer in x
...         for inner in outer]
['a', 'b', 'c']