Mod_python error: "PythonHandler mod_python.publisher"

Traceback (most recent call last):

  File "/usr/lib/python2.4/site-packages/mod_python/apache.py", line 299, in HandlerDispatch
    result = object(req)

  File "/usr/lib/python2.4/site-packages/mod_python/publisher.py", line 213, in handler
    published = publish_object(req, object)

  File "/usr/lib/python2.4/site-packages/mod_python/publisher.py", line 412, in publish_object
    return publish_object(req,util.apply_fs_data(object, req.form, req=req))

  File "/usr/lib/python2.4/site-packages/mod_python/util.py", line 439, in apply_fs_data
    return object(**args)

  File "/var/www/bin/localhost/auxiliar.py", line 79, in index
    res = aux.Sindicar(par)

  File "/var/www/bin/localhost/auxiliar.py", line 2102, in Sindicar
    pl = self.Inicializar(par, 'sindicar900.html')

  File "/var/www/bin/localhost/auxiliar.py", line 252, in Inicializar
    pl = dice.Plantilla(HTMLPATH + html)

  File "/var/www/bin/api/dice.py", line 248, in __init__
    self.plantilla = open(plantilla, 'r').read()

IOError: [Errno 2] No such file or directory: '/var/www/bin/localhost/plantillas/sindicar900.html'