diff -r e4dd5d700ef3 Lib/test/test_import.py
--- a/Lib/test/test_import.py	Sat Dec 03 12:39:10 2016 -0800
+++ b/Lib/test/test_import.py	Sat Dec 03 23:42:23 2016 +0200
@@ -12,7 +12,8 @@ import textwrap
 import shutil
 
 from test.test_support import (unlink, TESTFN, unload, run_unittest, rmtree,
-                               is_jython, check_warnings, EnvironmentVarGuard)
+                               is_jython, check_warnings, EnvironmentVarGuard,
+                               swap_attr)
 from test import symlink_support
 from test import script_helper
 
@@ -409,9 +410,12 @@ class ImportTests(unittest.TestCase):
                 v1_file.write("import sys;"
                               "sys.modules['sa'] = sys.modules[__name__];"
                               "import sa")
-            sys.path.insert(0, dir_name)
-            # a segfault means the test failed!
-            import sa
+            try:
+                sys.path.insert(0, dir_name)
+                # a segfault means the test failed!
+                import sa
+            finally:
+                sys.path.pop(0)
         finally:
             rmtree(dir_name)