[tableviews] use ``select_or_none`` instead of ``try: select() except:``
select_or_none is here to avoid multiplying try: except: context in the code.
from os.path import join
assert __file__.endswith(join('scripts', 'script3.py')), __file__
assert '__main__' == __name__, __name__
assert ['-vd', '-f', 'FILE.TXT'] == __args__, __args__