workaround for Azure#5797

chlowell · Dec 16, 2020 · 48ea752 · 48ea752
1 parent 0383294
commit 48ea752
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/sdk/identity/azure-identity/azure/identity/aio/_credentials/azure_arc.py b/sdk/identity/azure-identity/azure/identity/aio/_credentials/azure_arc.py
@@ -29,7 +29,7 @@
     from azure.core.credentials import AccessToken
     from azure.core.pipeline import PipelineRequest, PipelineResponse
     from azure.core.pipeline.policies import SansIOHTTPPolicy
-    from azure.core.pipeline.transport import AsyncHttpResponse
+    from azure.core.pipeline.transport import AsyncHttpResponse, AsyncHttpTransport
 
     PolicyType = Union[AsyncHTTPPolicy, SansIOHTTPPolicy]
 
@@ -87,6 +87,11 @@ def _get_policies(config: "Configuration", **kwargs: "Any") -> "List[PolicyType]
 class ArcChallengeAuthPolicy(AsyncHTTPPolicy):
     """Policy for handling Azure Arc's challenge authentication"""
 
+    def __init__(self):
+        # workaround for https://github.com/Azure/azure-sdk-for-python/issues/5797
+        super().__init__()
+        self.next = None  # type: Union[AsyncHTTPPolicy, AsyncHttpTransport]
+
     async def send(self, request: "PipelineRequest") -> "PipelineResponse":
         request.http_request.headers["Metadata"] = "true"
         response = await self.next.send(request)