Merge pull request #2280 from delftswa2017/fix-deprecation-warning

Fix deprecated decodestring warning

Author: Carreau

notebook/services/contents/largefilemanager.py

@@ -57,7 +57,7 @@ def _save_large_file(self, os_path, content, format):
                 bcontent = content.encode('utf8')
             else:
                 b64_bytes = content.encode('ascii')
-                bcontent = base64.decodestring(b64_bytes)
+                bcontent = base64.b64decode(b64_bytes)
         except Exception as e:
             raise web.HTTPError(
                 400, u'Encoding error saving %s: %s' % (os_path, e)

setup.cfg

@@ -8,4 +8,4 @@ warningfilters=module   |.*            |DeprecationWarning |notebook.*
                ignore   |.*schema.*    |UserWarning        |nbfor.*
                ignore   |The 'warn' method is deprecated, use 'warning' instead     | DeprecationWarning |notebook.*
                error    |encodestring\(\) is a deprecated alias, use encodebytes\(\)| DeprecationWarning | notebook.*
-
+               error    |decodestring\(\) is a .*| DeprecationWarning | notebook.*