Traceback (most recent call last):
  File "/var/www/tennisabstract/cgi-bin/wtourney.cgi", line 1097, in <module>
    wpdict = {k[0]: {'ioc': k[6], 'name': k[16] + ' ' + k[17], 'last': k[17]} for k in prows if k[0] in wplayers}  
                                          ~~~~~~^~~~~
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'