diff --git a/paddlepalm/_downloader.py b/paddlepalm/_downloader.py
index 597302be2f80df55200c3cb2ed62372ffad879d3..dc38a3a16ea7dd895ad2c0b4a3e197147e2fcca2 100644
--- a/paddlepalm/_downloader.py
+++ b/paddlepalm/_downloader.py
@@ -28,7 +28,7 @@ import ssl
 __all__ = ["download", "ls"]
 
 # for https
-ssl._create_default_https_context = ssl._create_unverified_context
+# ssl._create_default_https_context = ssl._create_unverified_context
 
 _items = {
     'pretrain': {'ernie-en-uncased-large': 'https://ernie.bj.bcebos.com/ERNIE_Large_en_stable-2.0.0.tar.gz',
@@ -131,13 +131,15 @@ def _convert(path, silent=False):
 def download(item, scope='all', path='.'):
     item = item.lower()
     scope = scope.lower()
+    print('1111111111111')
     assert item in _items, '{} is not found. Support list: {}'.format(item, list(_items.keys()))
    
     if _items[item]['utils'] is not None:
         _download(item, 'utils', path, silent=True)
 
     if scope != 'all':
-        assert scope in _items[item], '{} is not found. Support items: {}'.format(item, list(_items.keys()))
+        print('222222')
+      #  assert scope in _items[item], '{} is not found. Support scopes: {}'.format(scope, list(_items[item].keys()))
         _download(item, scope, path)
     else:
         for s in _items[item].keys():
@@ -146,6 +148,7 @@ def download(item, scope='all', path='.'):
 
 def _ls(item, scope, l = 10):
     if scope != 'all':
+        print('33333')
         assert scope in _items[item], '{} is not found. Support scopes: {}'.format(scope, list(_items[item].keys()))
         print ('{}  ==>  {}'.format(item, scope))
     else:
@@ -160,6 +163,7 @@ def ls(item='all', scope='all'):
         return
     print ('Download list:')
     if item != 'all':
+        print('44444')
         assert item in _items, '{} is not found. Support scopes: {}'.format(item, list(_items.keys()))
         _ls(item, scope)
     else: