how to concat list in python code example

Example 1: how to combine two lists in python

listone = [1,2,3]
listtwo = [4,5,6]

joinedlist = listone + listtwo

Example 2: concatenate list of strings python

listvalues = ['a', 'b', 'c']
concstring = ''.join(l)

Example 3: python concatenate list of lists

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

result = sum(x, [])