XML_NS = "http://www.w3.org/XML/1998/namespace"
XMLNS_NS = "http://www.w3.org/2000/xmlns/"
XHTML_NS = "http://www.w3.org/1999/xhtml"
TAL_NS = "http://xml.zope.org/namespaces/tal"
META_NS = "http://xml.zope.org/namespaces/meta"
METAL_NS = "http://xml.zope.org/namespaces/metal"
XI_NS = "http://www.w3.org/2001/XInclude"
I18N_NS = "http://xml.zope.org/namespaces/i18n"
PY_NS = "http://genshi.edgewall.org/"