fix api for bundles

Author: FChataigner

dataikuapi/dss/project.py

@@ -6,6 +6,7 @@
 from scenario import DSSScenario
 from apiservice import DSSAPIService
 import sys
+import os.path as osp
 from .future import DSSFuture
 
 class DSSProject(object):
@@ -373,7 +374,7 @@ def list_imported_bundles(self):
                 "/projects/%s/bundles/imported" % self.project_key)
 
     def import_bundle_from_archive(self, archive_path):
-        return self.client._perform_json("POST",
+        return self.client._perform_empty("POST",
                 "/projects/%s/bundles/imported/actions/importFromArchive" % (self.project_key),
                  params = { "archivePath" : osp.abspath(archive_path) })