diff options
| -rw-r--r-- | tests/coveragetest.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/coveragetest.py b/tests/coveragetest.py index c30e13a7..5cd94e28 100644 --- a/tests/coveragetest.py +++ b/tests/coveragetest.py @@ -53,7 +53,7 @@ class EnvironmentAwareMixin(unittest.TestCase): def del_environ(self, name): """Delete an environment variable, unless we set it.""" - if name not in self._environ_undos: + if name not in self._environ_undos and name in os.environ: self._environ_undos[name] = os.environ.get(name) del os.environ[name] |