fix packaging.compiler.msvc9compiler: os.environ values are str, not bytes
diff --git a/Lib/packaging/compiler/msvc9compiler.py b/Lib/packaging/compiler/msvc9compiler.py
index 7a19f47..6af0258 100644
--- a/Lib/packaging/compiler/msvc9compiler.py
+++ b/Lib/packaging/compiler/msvc9compiler.py
@@ -358,8 +358,8 @@
# take care to only use strings in the environment.
self.__paths = [part.encode('mbcs') for part in
vc_env['path'].split(os.pathsep)]
- os.environ['lib'] = vc_env['lib'].encode('mbcs')
- os.environ['include'] = vc_env['include'].encode('mbcs')
+ os.environ['lib'] = vc_env['lib']
+ os.environ['include'] = vc_env['include']
if len(self.__paths) == 0:
raise PackagingPlatformError("Python was built with %s, "