How can I replace a text delimited string list item with multiple list items in a python list?

Question

Given a list:

mylist = [\'dog\', \'cat\', \'mouse_bear\', \'lion_tiger_rabbit\', \'ant\']

I\'d like a one-liner to return a new list:

Answer 1

using the itertools recipe to flatten a list you could do this:

from itertools import chain

mylist = ['dog', 'cat', 'mouse_bear', 'lion_tiger_rabbit', 'ant']

new_list = list(chain.from_iterable(item.split('_') for item in mylist))
print(new_list) 
# ['dog', 'cat', 'mouse', 'bear', 'lion', 'tiger', 'rabbit', 'ant']

...or does the import statement violate your one-liner requirement?