new: [Sightings] Delete method

Fix #230

pymisp/aping.py

@@ -447,6 +447,12 @@ class ExpandedPyMISP(PyMISP):
         s.from_dict(**new_sighting)
         return s
 
+    def delete_sighting(self, sighting: Union[MISPSighting, int, str, UUID]):
+        '''Delete a sighting from a MISP instance'''
+        sighting_id = self.__get_uuid_or_id_from_abstract_misp(sighting)
+        response = self._prepare_request('POST', f'sightings/delete/{sighting_id}')
+        return self._check_response(response, expect_json=True)
+
     # ## END Sighting ###
 
     # ## BEGIN Tags ###

tests/testlive_comprehensive.py

@@ -798,6 +798,10 @@ class TestComprehensive(unittest.TestCase):
             s = self.user_misp_connector.sightings(second.attributes[0], self.test_org.id, pythonify=True)
             self.assertEqual(len(s), 1)
             self.assertEqual(s[0].org_id, self.test_org.id)
+            # Delete sighting
+            r = self.user_misp_connector.delete_sighting(s[0])
+            self.assertEqual(r['message'], 'Sighting successfuly deleted.')
+
         finally:
             # Delete event
             self.admin_misp_connector.delete_event(first.id)