disable windows until pythonpath

Author: lucasmcdonald3

src/aws_encryption_sdk/streaming_client.py

@@ -78,7 +78,7 @@
     from aws_cryptographic_materialproviders.mpl.models import CreateDefaultCryptographicMaterialsManagerInput
     from aws_cryptographic_materialproviders.mpl.references import IKeyring
     _HAS_MPL = True
-except ImportError as e:
+except ImportError:
     _HAS_MPL = False
 
 _LOGGER = logging.getLogger(__name__)