bug: move import findargspec out of Permission __init__ method We have a few places where imports are done inside a method/function. For methods that are called once it's not an issue but the Permissions __init__ method is called often and accounts for > 10% of the time in the __init__ function when looking at wsgi-lineprof output. So move it to the module level.

try:
    # Python 2.
    my_input = raw_input
except NameError:
    # Python 3+.
    my_input = input