From a9340b38bf152ff49b38df6026624280419ee93f Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Wed, 22 Jul 2015 12:14:38 -0400
Subject: Don't write a plugins key if there are no plugins.

---
 coverage/data.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'coverage/data.py')

diff --git a/coverage/data.py b/coverage/data.py
index 68b02127..3eb51bf3 100644
--- a/coverage/data.py
+++ b/coverage/data.py
@@ -301,7 +301,8 @@ class CoverageData(object):
         else:
             file_data['lines'] = self._lines
 
-        file_data['plugins'] = self._plugins
+        if self._plugins:
+            file_data['plugins'] = self._plugins
 
         # Write the data to the file.
         json.dump(file_data, file_obj)
-- 
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