. Nested List Comprehension code example
Example 1: nested loop in list comprehension
# 2-D List
matrix = [[1, 2, 3], [4, 5], [6, 7, 8, 9]]
# Nested List Comprehension to flatten a given 2-D matrix
flatten_matrix = [val for sublist in matrix for val in sublist]
print(flatten_matrix)
Example 2: python nested list
L = [[1, 2, 3],[4, 5, 6],[7, 8, 9]]
for list in L:
for number in list:
print(number, end=' ')
# Prints 1 2 3 4 5 6 7 8 9