Under python 3 'print' is a function, and the linter does not like
having a space between the function name and the paren indicating the
call. Remove the space.
The builtin 'file' is removed under python 3. Replace its use with
'open', which is available on both python 2 and 3.
Change-Id: Ib8522d8ab1974a4ba3e407ffbe449e2f5fc9471a
Signed-off-by: Doug Hellmann <doug@doughellmann.com>