Possible to append multiple lists at once? (Python)

Question

I have a bunch of lists I want to append to a single list that is sort of the \"main\" list in a program I\'m trying to write. Is there a way to do this in one line of code

Answer 1

equivalent to above answer, but sufficiently different to be worth a mention:

my_map = {
   'foo': ['a', 1, 2],
   'bar': ['b', '2', 'c'],
   'baz': ['d', 'e', 'f'],
} 
list(itertools.chain(*my_map.values()))
['d', 'e', 'f', 'a', 1, 2, 'b', '2', 'c']

in the above expression, * is important for groking result as args to chain, this is same as prior chain(x,y,z). Also, note the result is hash-ordered.