How to remove the first and last item in a list?

Question

I have the List

['Q 0006 005C 0078 0030 0030 0033 0034 ONE_OF 0002 '] 

How do I remove the first element, Q and 0002, the last element?

Answer 1

If your list is stored under my_list then this should work.

my_list = my_list[1:-1]

Answer 2

I'm not sure exactly what you want since it is unclear but this should help. You actually only have a single element in that list.

Assuming all your list items are strings with spaces as delimiters, here is how you can remove the first and last group of characters from each string in the list.

>>> L = ['Q 0006 005C 0078 0030 0030 0033 0034 ONE_OF 0002 ']
>>> [' '.join(el.split()[1:-1]) for el in L]
['0006 005C 0078 0030 0030 0033 0034 ONE_OF']

Answer 3

Another (quite Pythonic) way to do it is using the extended sequence unpacking feature:

my_list = _ , *my_list, _

Example

>>> my_list =  [1, 2, 3, 4, 5]
>>> _, *my_list, _ = my_list
>>> my_list
[2, 3, 4]