diff options
Diffstat (limited to 'src/python/grpcio/grpc/_links/invocation.py')
| -rw-r--r-- | src/python/grpcio/grpc/_links/invocation.py | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/python/grpcio/grpc/_links/invocation.py b/src/python/grpcio/grpc/_links/invocation.py index 5ca0a0ee60..003653e1c8 100644 --- a/src/python/grpcio/grpc/_links/invocation.py +++ b/src/python/grpcio/grpc/_links/invocation.py @@ -35,6 +35,8 @@ import logging import threading import time +import six + from grpc._adapter import _intermediary_low from grpc._links import _constants from grpc.beta import interfaces as beta_interfaces @@ -372,12 +374,11 @@ class _Kernel(object): pool.shutdown(wait=True) -class InvocationLink(links.Link, activated.Activated): +class InvocationLink(six.with_metaclass(abc.ABCMeta, links.Link, activated.Activated)): """A links.Link for use on the invocation-side of a gRPC connection. Implementations of this interface are only valid for use when activated. """ - __metaclass__ = abc.ABCMeta class _InvocationLink(InvocationLink): |