How can I find a item in a list that's in a list?

Question

To find a item in a list you would do:

List = ["hi","hello","bye"]
List.index("hello")
>>>1

How do I find something that is in a list that's in a list and give me both values: (doesn't work btw, just example)
List = [["hi","hello"],["bye"]]
List.index("hello")
>>>0,1

Answer 1

# If you are looking to retrieve values of indexed positions
# in a nested list
# you can access the outer level list elements with the first [index]
# the sub level list elements with the [second] index and so forth.
# depending on the degree of list nesting you have.
my_list = [["hi","hello"],["bye"]]
get_hello = my_list[0][1]
print(get_hello)
get_bye =my_list[1][0]
print(get_bye)

# if want the indexed locations and associated values
# for a list of lists one option is looping over the enumerated
# lists
for ind,item in enumerate(my_list):
for indx,subitem in enumerate(item):
print('found item {0} at [{1}][{2}]'.format(subitem,ind,indx))