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: join lists python
first_list = ["1", "2"]
second_list = ["3", "4"]
# Multiple ways to do this:
first_list += second_list
first_list = first_list + second_list
first_list.extend(second_list)
Example 4: merge two lists
# Makes list1 longer by appending the elements of list2 at the end.
list1.extend(list2)
Example 5: python merge list of lists
flat_list = [item for sublist in t for item in sublist]
Example 6: how to join two lists in python
#define lists
my_list = ["a", "b"]
other_list = [1, 2]
#extend my_list by adding all the values from other_list into my list
my_list.extend(other_list)
# output: ['a', 'b', 1, 2]