fixed problem with import

restscrape/scraper.py

@@ -22,7 +22,7 @@ class scraper:
         for label,xpath in labels.items():
             res = self.xpath(xpath)
             if raw_tags:
-                ret[label] = list(etree.tostring(element, pretty_print=True) for element in res)
+                ret[label] = list(lxml.etree.tostring(element, pretty_print=True) for element in res)
             else:
                 ret[label] = list(element.text for element in res)