From 0c0666caa0e7ce5725416115389fe797113b731c Mon Sep 17 00:00:00 2001
From: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Date: Mon, 3 Apr 2017 17:25:08 +0200
Subject: [PATCH] druid: use six.string_types instead of basestring (#2541)

Which is not available in python3

Fix #2539
---
 superset/connectors/druid/models.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/superset/connectors/druid/models.py b/superset/connectors/druid/models.py
index 3bb7923cfb..e8063d3f7a 100644
--- a/superset/connectors/druid/models.py
+++ b/superset/connectors/druid/models.py
@@ -982,10 +982,10 @@ class DruidDatasource(Model, BaseDatasource):
             if op in ('in', 'not in'):
                 eq = [
                     types.replace("'", '').strip()
-                    if isinstance(types, basestring)
+                    if isinstance(types, string_types)
                     else types
                     for types in eq]
-            elif not isinstance(flt['val'], basestring):
+            elif not isinstance(flt['val'], string_types):
                 eq = eq[0] if len(eq) > 0 else ''
             if col in self.num_cols:
                 if op in ('in', 'not in'):