stop the list comprehension in python if else code example

Example 1: list comprehension if else

l = [22, 13, 45, 50, 98, 69, 43, 44, 1]
a = [x + 1 if x >= 45 else x + 5 for x in l]

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)