Python – Extend consecutive tuples

When working with tuples in Python, you may need to extend consecutive tuples by combining each tuple with the next one in the sequence. This creates a new list where each element is the concatenation of two adjacent tuples.

Example

Below is a demonstration of extending consecutive tuples ?

my_list = [(13, 526, 73), (23, 67, 0, 72, 24, 13), (94, 42), (11, 62, 23, 12), (93, ), (83, 61)]

print("The list is :")
print(my_list)

my_list.sort(reverse=True)
print("The list after sorting in reverse is :")
print(my_list)

my_result = []
for index in range(len(my_list) - 1):
   my_result.append(my_list[index] + my_list[index + 1])

print("The result is :")
print(my_result)

The list is :
[(13, 526, 73), (23, 67, 0, 72, 24, 13), (94, 42), (11, 62, 23, 12), (93,), (83, 61)]
The list after sorting in reverse is :
[(94, 42), (93,), (83, 61), (23, 67, 0, 72, 24, 13), (13, 526, 73), (11, 62, 23, 12)]
The result is :
[(94, 42, 93), (93, 83, 61), (83, 61, 23, 67, 0, 72, 24, 13), (23, 67, 0, 72, 24, 13, 13, 526, 73), (13, 526, 73, 11, 62, 23, 12)]

How It Works

The process involves these key steps:

• A list of tuples is defined and displayed on the console.

• It is sorted in reverse order using the sort() method and displayed on the console.

• An empty list is created to store the results.

• The list is iterated over using range(len(my_list) - 1) to avoid index out of bounds.

• Consecutive tuples are concatenated using the + operator and appended to the result list.

Alternative Approach Using List Comprehension

You can achieve the same result more concisely using list comprehension ?

my_list = [(13, 526, 73), (23, 67, 0, 72, 24, 13), (94, 42), (11, 62, 23, 12), (93, ), (83, 61)]

print("The original list is :")
print(my_list)

# Extend consecutive tuples using list comprehension
result = [my_list[i] + my_list[i + 1] for i in range(len(my_list) - 1)]

print("The result is :")
print(result)

The original list is :
[(13, 526, 73), (23, 67, 0, 72, 24, 13), (94, 42), (11, 62, 23, 12), (93,), (83, 61)]
The result is :
[(13, 526, 73, 23, 67, 0, 72, 24, 13), (23, 67, 0, 72, 24, 13, 94, 42), (94, 42, 11, 62, 23, 12), (11, 62, 23, 12, 93), (93, 83, 61)]

Conclusion

Extending consecutive tuples is accomplished by iterating through the list and concatenating each tuple with its next neighbor using the + operator. This technique is useful for combining adjacent data elements in sequence processing tasks.