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-rw-r--r--setuptools/tests/test_msvc9compiler.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/setuptools/tests/test_msvc9compiler.py b/setuptools/tests/test_msvc9compiler.py
index 02ced8cf..1c557d39 100644
--- a/setuptools/tests/test_msvc9compiler.py
+++ b/setuptools/tests/test_msvc9compiler.py
@@ -69,7 +69,7 @@ def patch_env(**replacements):
os.environ.update(replacements)
# remove values that are null
- null_keys = (key for (key, value) in replacements if value is None)
+ null_keys = (key for (key, value) in replacements.items() if value is None)
list(map(os.environ.pop, (null_keys)))
yield