nl: wsgi_opts is a dictionary with 4 initial entries: value under the key 'maxspare' of options dictionary converted to an integer,
code: wsgi_opts = { 'maxSpare' : int ( options [ "maxspare" ] ) , 'minSpare' : int ( options [ "minspare" ] ) , 'maxThreads' : int ( options [ "maxchildren" ] ) , }