Change ipunittest to work around missing yield from implementation
@@ -327,7 +327,7 @@ class IronPythonTestCase(unittest.TestCase, FileUtil, ProcessUtil):
# environment variables
def get_environ_variable(self, key):
- l = [os.environ[x] for x in list(os.environ.keys()) if x.lower() == key.lower()]
+ l = [y for x, y in os.environ.items() if x.lower() == key.lower()]
if l: return l[0]
return None
