if else in list comprehension which has 4 for lops code example

Example 1: list comprehension python if else

[statement if condition else statement for _ in iterable_object]
#statement are without assignment

Example 2: list comprehension for loop and if

matrix = [[1, 2], [3,4], [5,6], [7,8]]
transpose = [[row[i] for row in matrix] for i in range(2)]
print (transpose)