Example 1: how to combine two lists in python
listone = [1,2,3]
listtwo = [4,5,6]
joinedlist = listone + listtwo
Example 2: python how to add one list to another list
# Basic syntax:
first_list.append(second_list) # Append adds the the second_list as an
# element to the first_list
first_list.extend(second_list) # Extend combines the elements of the
# first_list and the second_list
# Note, both append and extend modify the first_list in place
# Example usage for append:
first_list = [1, 2, 3, 4, 5]
second_list = [6, 7, 8, 9]
first_list.append(second_list)
print(first_list)
--> [1, 2, 3, 4, 5, [6, 7, 8, 9]]
# Example usage for extend:
first_list = [1, 2, 3, 4, 5]
second_list = [6, 7, 8, 9]
first_list.extend(second_list)
print(first_list)
--> [1, 2, 3, 4, 5, 6, 7, 8, 9]
Example 3: how to combine 2 lists in python
l1 = [1,2,3,4]
l2 = [1,1,1,1]
l3 = [l1[x//2] if x % 2 == 0 else l2[x//2] for x in range(8)]
// l3: [1, 2, 3, 4, 5, 6, 7, 8]
Example 4: python concatenate list of lists
x = [["a","b"], ["c"]]
result = sum(x, [])
Example 5: merge two lists python
>>> l1 = [1, 2, 3]
>>> l2 = [4, 5, 6]
>>> joined_list = [*l1, *l2] # unpack both iterables in a list literal
>>> print(joined_list)
[1, 2, 3, 4, 5, 6]