From 95bb1753ab3a9fef572b40d7b7762fd7b4982374 Mon Sep 17 00:00:00 2001
From: Timi Fasubaa <timi.fasubaa@airbnb.com>
Date: Wed, 13 Jun 2018 14:13:05 -0700
Subject: [PATCH] fix empty metrics

---
 superset/viz.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/superset/viz.py b/superset/viz.py
index 90f202480e..6015f7c181 100644
--- a/superset/viz.py
+++ b/superset/viz.py
@@ -555,7 +555,7 @@ class TableViz(BaseViz):
                 m_name = '%' + m
                 df[m_name] = pd.Series(metric_percents[m], name=m_name)
             # Remove metrics that are not in the main metrics list
-            metrics = fd.get('metrics', [])
+            metrics = fd.get('metrics') or []
             metrics = [self.get_metric_label(m) for m in metrics]
             for m in filter(
                 lambda m: m not in metrics and m in df.columns,