From 56e61431209ac76911f25eee3374c9a0b7d7b8ed Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Tue, 6 Oct 2015 07:14:18 -0400
Subject: Protect ourselves from mock'ed os. #416

---
 coverage/config.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'coverage/config.py')

diff --git a/coverage/config.py b/coverage/config.py
index 458d490..cd66697 100644
--- a/coverage/config.py
+++ b/coverage/config.py
@@ -9,7 +9,9 @@ import re
 import sys
 
 from coverage.backward import configparser, iitems, string_class
-from coverage.misc import CoverageException
+from coverage.misc import CoverageException, isolate_module
+
+os = isolate_module(os)
 
 
 class HandyConfigParser(configparser.RawConfigParser):
-- 
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