how to combine two list in pyhton code example

Example 1: how to combine two lists in python

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

joinedlist = listone + listtwo

Example 2: combine list of lists python

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

result = sum(x, [])
# This combines the lists within the list into a single list