python nested list
# example of a nested list
my_list = [[1, 2], ["one", "two"]]
# accessing a nested list
my_list[1][0] # outputs "one"python nested list
# example of a nested list
my_list = [[1, 2], ["one", "two"]]
# accessing a nested list
my_list[1][0] # outputs "one"how to make one list from nested list
>>> from collections import Iterable
def flatten(lis):
for item in lis:
if isinstance(item, Iterable) and not isinstance(item, str):
for x in flatten(item):
yield x
else:
yield item
>>> lis = [1,[2,2,2],4]
>>> list(flatten(lis))
[1, 2, 2, 2, 4]
>>> list(flatten([[1, 2, 3], [4, 5, 6], [7, 8, 9]]))
[1, 2, 3, 4, 5, 6, 7, 8, 9]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 9Copyright © 2021 Codeinu
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