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"""
Dummy selectors
"""
from .list import XPathSelectorList as XPathSelectorList
__all__ = ['HtmlXPathSelector', 'XmlXPathSelector', 'XPathSelector', \
'XPathSelectorList']
class XPathSelector(object):
def __init__(self, *a, **kw):
pass
def _raise(self, *a, **kw):
raise RuntimeError("No selectors backend available. " \
"Please install libxml2 or lxml")
select = re = extract = register_namespace = __nonzero__ = _raise
XmlXPathSelector = XPathSelector
HtmlXPathSelector = XPathSelector
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