Fix http error reporting and json metadata handling

Raise on unsuccessful HTTP responses during Bandersnatch requests so
errors are reported directly instead of being misclassified as
stale metadata.

Also allow deserialized json list values when rendering python package
metadata.

Author: hstct

CHANGES/+fixed-error-reporting-and-json-metadata-handling.bugfix

@@ -0,0 +1 @@
+Fixed python syncs masking HTTP errors as stale metadata and handling native json list values in package metadata

pulp_python/app/tasks/sync.py

@@ -130,6 +130,7 @@ async def run(self):
                 auth=downloader.auth,
                 proxy=downloader.proxy,
                 proxy_auth=downloader.proxy_auth,
+                raise_for_status=True,
             )
 
             deferred_download = self.remote.policy != Remote.IMMEDIATE

pulp_python/app/utils.py

@@ -441,7 +441,7 @@ def json_to_dict(data):
         dictionary: of JSON string
 
     """
-    if isinstance(data, dict):
+    if isinstance(data, (dict, list)):
         return data
 
     return json.loads(data)