Traceback (most recent call last): File "/var/www/tennisabstract/cgi-bin/tourney.cgi", line 1002, in match_row, _, _ = make_match_row(sm, rdict, pdict, tlev) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/var/www/tennisabstract/cgi-bin/tourney.cgi", line 317, in make_match_row w2won = cxd((w2spw/w2sp) * 100, 1) + '%' ~~~~~^~~~~ ZeroDivisionError: float division by zero