How can I append a tuple into another tuple in Python?

In this article, we will show you how to append a tuple into another in python. Below are the various methods to accomplish this task −

• Using + operator.

• Using sum() function.

• Using list() & extend() functions.

• Using the unpacking(*) operator.

Tuples are an immutable, unordered data type used to store collections in Python. Lists and tuples are similar in many ways, but a list has a variable length and is mutable in comparison to a tuple which has a fixed length and is immutable.

Using + operator

Algorithm (Steps)

Following are the Algorithm/steps to be followed to perform the desired task −

• Create a variable to store the input tuple 1.

• Create another variable to store the input tuple 2.

• Use the + operator to append or concat the 2nd tuple to the first tuple.

• Print the resultant tuple after appending inputTuple_2 with the inputTuple_1.

Example

The following program appends inputTuple_2 with the inputTuple_1 using the + operator –

# input tuple 1
inputTuple_1 = (12, 8, 6)
# input tuple 2
inputTuple_2 = (3, 4)
# appending/concatenating 2nd tuple to the first tuple using the + operator
resultTuple = inputTuple_1 + inputTuple_2
# printing the resultant tuple after appending
print("Resultant tuple after appending inputTuple_2 to the inputTuple_1:\n", resultTuple)

Output

On executing, the above program will generate the following output −

Resultant tuple after appending inputTuple_2 to the inputTuple_1:
(12, 8, 6, 3, 4)

Using sum() function

Algorithm (Steps)

Following are the Algorithm/steps to be followed to perform the desired task –.

• Create a variable to store the input tuple 1.

• Create another variable to store the input tuple 2.

• Print both the given input tuples.

• Pass both tuples as a tuple and an empty tuple as an argument to the sum() function(Returns the sum of all items in an iterable) to concatenate the given two tuples.

• Print the resultant tuple after appending inputTuple_2 with the inputTuple_1.

Example

The following program appends inputTuple_2 with the inputTuple_1 using the sum() function −

# input tuple 1
inputTuple_1 = (12, 8, 6)
# input tuple 2
inputTuple_2 = (3, 4)
# printing both the given input tuples
print("inputTuple_1: ", inputTuple_1)
print("inputTuple_2: ", inputTuple_2)
# appending/concatenating 2nd tuple to the first tuple
resultTuple = sum((inputTuple_1, inputTuple_2), ())
# printing the resultant tuple after appending
print("Resultant tuple after appending inputTuple_2 to the inputTuple_1:\n", resultTuple)

Output

On executing, the above program will generate the following output −

inputTuple_1: (12, 8, 6)
inputTuple_2: (3, 4)
Resultant tuple after appending inputTuple_2 to the inputTuple_1:
(12, 8, 6, 3, 4)

Using list() & extend() functions

Algorithm (Steps)

Following are the Algorithm/steps to be followed to perform the desired task –.

• Create a variable to store the input tuple 1.

• Create another variable to store the input tuple 2.

• Print both the given input tuples.

• Use the list() function(converts the sequence/iterable to a list) to convert both the input tuples into a list.

• Use the extend() function(adds all the elements of an iterable like list, tuple, string etc to the end of the list) to append or concatenate the above 2nd list to the first list.

• Use the tuple() function(create tuples in Python) to convert the resultant first list to a tuple which is the resultant tuple after appending the 2nd list to the 1st list.

• Print the resultant tuple after appending.

Example

The following program appends inputTuple_2 with the inputTuple_1 using the list and extend() functions –

# input tuple 1
inputTuple_1 = (12, 8, 6)
# input tuple 2
inputTuple_2 = (3, 4)
# printing both the given input tuples
print("inputTuple_1: ", inputTuple_1)
print("inputTuple_2: ", inputTuple_2)
# converting inputTuple_1 into list
list_1 = list(inputTuple_1)
# converting inputTuple_2 into list
list_2 = list(inputTuple_2)
# appending/concatenating 2nd list to the first list
list_1.extend(list_2)
# converting the resultant first list to a tuple
# which is the resultant tuple after appending the 2nd list to the 1st list
resultTuple=tuple(list_1)
# printing the resultant tuple after appending
print("Resultant tuple after appending inputTuple_2 to the inputTuple_1:\n", resultTuple)

Output

On executing, the above program will generate the following output −

inputTuple_1: (12, 8, 6)
inputTuple_2: (3, 4)
Resultanat tuple after appending inputTuple_2 to the inputTuple_1:
(12, 8, 6, 3, 4)

Using the unpacking (*) operator

Example

The following program appends inputTuple_2 with the inputTuple_1 using the unpacking operator –

# input tuple 1
inputTuple_1 = (12, 8, 6)
# input tuple 2
inputTuple_2 = (3, 4)
# printing both the given input tuples
print("inputTuple_1: ", inputTuple_1)
print("inputTuple_2: ", inputTuple_2)
# Unpacking the first tuple and adding the second tuple
resultTuple= (*inputTuple_1,inputTuple_2)
# Printing the result tuple
# printing the resultant tuple after appending
print("Resultant tuple after appending inputTuple_2 to the inputTuple_1:\n", resultTuple)

Output

On executing, the above program will generate the following output −

inputTuple_1: (12, 8, 6)
inputTuple_2: (3, 4)
Resultant tuple after appending inputTuple_2 to the inputTuple_1:
(12, 8, 6, (3, 4))

Conclusion

In this article, we learned four different Python methods for appending a tuple to another tuple. In this article, we also learned about the list(), extend(), and unpacking operator(*). In Python, we learned how to convert a given tuple to a list and a list to a tuple.