python two lists together code example

Example 1: how to combine two lists in python

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

joinedlist = listone + listtwo

Example 2: append two list of number to one python

listone = [1,2,3]
listtwo = [4,5,6]
mergedlist = []
mergedlist.extend(listone)
mergedlist.extend(listtwo)

Example 3: merge two lists

# Makes list1 longer by appending the elements of list2 at the end.
list1.extend(list2)

Example 4: python merge list of lists

flat_list = [item for sublist in t for item in sublist]