if opts.usetitle and opts.useid:
parser.error(u'using title conflicts with using video ID')
if opts.username is not None and opts.password is None:
if opts.usetitle and opts.useid:
parser.error(u'using title conflicts with using video ID')
if opts.username is not None and opts.password is None:
if opts.ratelimit is not None:
numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
if numeric_limit is None:
if opts.ratelimit is not None:
numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
if numeric_limit is None: