bug fix

core/utils/dataset_instance.py

@@ -14,8 +14,7 @@
 
 from __future__ import print_function
 import sys
-import yaml
-from paddlerec.core.utils import envs
+
 from paddlerec.core.utils.envs import lazy_instance_by_fliename
 from paddlerec.core.reader import SlotReader
 
@@ -39,11 +38,6 @@ else:
 
 yaml_abs_path = sys.argv[3]
 
-with open(yaml_abs_path, 'r') as rb:
-    config = yaml.load(rb.read(), Loader=yaml.FullLoader)
-envs.set_global_envs()
-envs.update_workspace()
-
 if reader_name != "SlotReader":
     reader_class = lazy_instance_by_fliename(reader_package, reader_name)
     reader = reader_class(yaml_abs_path)