It's not hard to do swapping yourself.
Save the first of two values to a local variable (or dictionary, if you can't be sure about the type). Write the second value to the first position. Write the contents of the local variable to the second position.
Not sure how exactly you wanna shift. Are we talking about about a one dimensional array or do you want to shift a 2- oder 3dimensional array? One dimensional should be easy with pop etc (though it might not be memory efficient with large arrays).
If it's something you need regularly or often, you could make yourself a template maybe.