def __init__(self, selector=None, type='css', *args, **kwargs):
if selector:
if type not in ['css', 'xpath']:
raise Exception('Selector type not supported.')
if type == 'xpath':
kwargs['restrict_xpaths'] = selector
else:
kwargs['restrict_xpaths'] = pyquery.PyQuery('a')._css_to_xpath(selector)
SgmlLinkExtractor.__init__(self, *args, **kwargs)
