if __name__ == '__main__':
n = 10
a = [[] for x in range(n)]
print(a) # [[], [], [], [], [], [], [], [], [], []]
# Python program to declare
# empty list
# list is declared
a = []
empty_lists = [ [] for _ in range(n) ]
list = list()
list = []
# There are two common methods to create an empty list
x = list()
print(len(x)) # Output: 0
y = []
print(len(x)) # Output: 0
lst = [None] * 10
fib = []
l_empty = []
print(l_empty)
# []
print(len(l_empty))
# 0
>>> num = []
>>> len(num)
0