if __name__ == '__main__':
n = 10
a = [[] for x in range(n)]
print(a) # [[], [], [], [], [], [], [], [], [], []]
import numpy
my_array = numpy.zeros(shape=(row,column))
empty_lists = [ [] for _ in range(n) ]
# There are two common methods to create an empty list
x = list()
print(len(x)) # Output: 0
y = []
print(len(x)) # Output: 0
fib = []
l_empty = []
print(l_empty)
# []
print(len(l_empty))
# 0
>>> num = []
>>> len(num)
0