["xml.sax.drivers.drv_xmltok",
"xml.sax.drivers.drv_xmlproc",
"xml.sax.drivers.drv_xmltoolkit",
"xml.sax.drivers.drv_xmllib"]
.
Optionally, driver_name can be a string containing the name of the driver to be used; the stored parser list will then not be used at all.