return lst == lst[::-1]
The first thing that came to mind was lst == list(reversed(lst)), but that doesn't quite work if the "sequence" you pass in is a string. Besides I hate to pass up an opportunity to use "[::-1]"
I have to admit that using languages like Haskell has made me sensitive to weirdnesses of python that I never really noticed before. For instance the fact that doing list("some string") doesn't return a list of characters but instead a list of strings of length 1. Ugh.