Always close files in distutils code and tests (#10252).

1 files changed, 9 insertions, 5 deletions

diff --git a/Lib/distutils/tests/test_msvc9compiler.py b/Lib/distutils/tests/test_msvc9compiler.py
index f1da843fab..40cb8be6d1 100644
--- a/Lib/distutils/tests/test_msvc9compiler.py
+++ b/Lib/distutils/tests/test_msvc9compiler.py
@@ -113,17 +113,21 @@ class msvc9compilerTestCase(support.TempdirManager,
         tempdir = self.mkdtemp()
         manifest = os.path.join(tempdir, 'manifest')
         f = open(manifest, 'w')
-        f.write(_MANIFEST)
-        f.close()
+        try:
+            f.write(_MANIFEST)
+        finally:
+            f.close()
 
         compiler = MSVCCompiler()
         compiler._remove_visual_c_ref(manifest)
 
         # see what we got
         f = open(manifest)
-        # removing trailing spaces
-        content = '\n'.join([line.rstrip() for line in f.readlines()])
-        f.close()
+        try:
+            # removing trailing spaces
+            content = '\n'.join([line.rstrip() for line in f.readlines()])
+        finally:
+            f.close()
 
         # makes sure the manifest was properly cleaned
         self.assertEquals(content, _CLEANED_MANIFEST)