def line_filter(line):
    """ Filter lines with specific words """
    # If any of these strings are int the line, do not output that line
    blacklist = ['** Device', '--Performing ', 'Tests Included', 'No difference',
                 'jnpr.jsnapy', 'ID gone missing', 'ID list', 'Difference in pre ']
    skip_line = False
    if line == '':
        skip_line = True
    else:
        for key in blacklist:
            if key in line:
                skip_line = True
    return skip_line