py3: add exception class to except clause

zoo/zoo_nanterre/saga.py

@@ -76,7 +76,7 @@ class Saga(object):
                                                                response.content[:1024])
         try:
             et = ET.fromstring(response.content)
-        except:
+        except Exception:
             return None, u'SAGA invalid XML content: %r' % response.content[:1024]
         content_node = et.find('.//{%s}%s' % (self.ns, content_tag))
         if content_node is None: