How to Transpose list of tuples in Python

To transpose a list of tuples (i.e., a matrix represented as tuples) in Python, you can use the zip() function along with the * (asterisk) operator for unpacking. You can then convert the zipped tuples back to tuples using a list comprehension or a generator expression.

Here's an example:

matrix = [
    (1, 2, 3),
    (4, 5, 6),
    (7, 8, 9)
]

# Transpose the matrix using zip and list comprehension
transposed = [tuple(row) for row in zip(*matrix)]
print(transposed)

This will output:

[(1, 4, 7), (2, 5, 8), (3, 6, 9)]

In this example, the * operator is used to unpack the list of tuples (matrix) before passing it to the zip() function. The zip() function then zips together the corresponding elements from each of the tuples, effectively transposing the matrix. Finally, a list comprehension is used to convert the zipped tuples back to tuples.

Alternatively, you can use a generator expression and the tuple() constructor:

transposed = tuple(tuple(row) for row in zip(*matrix))
print(transposed)

This will output:

((1, 4, 7), (2, 5, 8), (3, 6, 9))

Python transpose list of tuple elements:

Description: Transposing a list of tuples in Python.

Code:

list_of_tuples = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
transposed_list = list(map(list, zip(*list_of_tuples)))
print("Transposed List of Tuples:", transposed_list)

How to switch rows and columns in a list of tuples in Python:

Description: Switching rows and columns in a list of tuples.

Code:

list_of_tuples = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
switched_list = list(map(list, zip(*list_of_tuples)))
print("Switched Rows and Columns in List of Tuples:", switched_list)

Transpose a matrix of tuples in Python:

Description: Transposing a matrix of tuples (list of tuples) in Python.

Code:

matrix_of_tuples = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
transposed_matrix = list(map(list, zip(*matrix_of_tuples)))
print("Transposed Matrix of Tuples:", transposed_matrix)

Example code for transposing a list of tuples:

Description: Providing a basic example of transposing a list of tuples in Python.

Code:

list_of_tuples = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
transposed_list = list(map(list, zip(*list_of_tuples)))
print("Transposed List of Tuples:", transposed_list)

Using zip to transpose a list of tuples in Python:

Description: Using the zip function to transpose a list of tuples.

Code:

list_of_tuples = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
transposed_list = list(map(list, zip(*list_of_tuples)))
print("Transposed List of Tuples using zip:", transposed_list)

Transpose list of tuples using numpy in Python:

Description: Transposing a list of tuples using NumPy in Python.

Code:

import numpy as np

list_of_tuples = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
transposed_list = np.transpose(list_of_tuples)
print("Transposed List of Tuples using NumPy:", transposed_list)

Transpose jagged list of tuples in Python:

Description: Transposing a jagged list of tuples (tuples with varying lengths).

Code:

jagged_list_of_tuples = [(1, 2), (3, 4, 5), (6, 7, 8, 9)]
transposed_jagged_list = list(map(list, zip(*jagged_list_of_tuples)))
print("Transposed Jagged List of Tuples:", transposed_jagged_list)

Python list comprehension for transposing a list of tuples:

Description: Using list comprehension to transpose a list of tuples in Python.

Code:

list_of_tuples = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
transposed_list = [list(row) for row in zip(*list_of_tuples)]
print("Transposed List of Tuples using List Comprehension:", transposed_list)

Transpose list of tuples without using zip in Python:

Description: Transposing a list of tuples without using the zip function.

Code:

list_of_tuples = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
transposed_list = [[row[i] for row in list_of_tuples] for i in range(len(list_of_tuples[0]))]
print("Transposed List of Tuples without using zip:", transposed_list)