Avoid overwriting '__module__' of messages from shared modules. (#5364)

Note that we *are* still overwriting it for messages from modules defined
within the current package.

See #4715.

packages/google-cloud-monitoring/google/cloud/monitoring_v3/types.py

@@ -15,13 +15,21 @@
 from __future__ import absolute_import
 import sys
 
-from google.api_core.protobuf_helpers import get_messages
-
 from google.api import distribution_pb2
 from google.api import http_pb2
 from google.api import label_pb2
 from google.api import metric_pb2 as api_metric_pb2
 from google.api import monitored_resource_pb2
+from google.protobuf import any_pb2
+from google.protobuf import descriptor_pb2
+from google.protobuf import duration_pb2
+from google.protobuf import empty_pb2
+from google.protobuf import field_mask_pb2
+from google.protobuf import timestamp_pb2
+from google.protobuf import wrappers_pb2
+from google.rpc import status_pb2
+
+from google.api_core.protobuf_helpers import get_messages
 from google.cloud.monitoring_v3.proto import alert_pb2
 from google.cloud.monitoring_v3.proto import alert_service_pb2
 from google.cloud.monitoring_v3.proto import common_pb2
@@ -34,43 +42,47 @@
 from google.cloud.monitoring_v3.proto import notification_service_pb2
 from google.cloud.monitoring_v3.proto import uptime_pb2
 from google.cloud.monitoring_v3.proto import uptime_service_pb2
-from google.protobuf import any_pb2
-from google.protobuf import descriptor_pb2
-from google.protobuf import duration_pb2
-from google.protobuf import empty_pb2
-from google.protobuf import field_mask_pb2
-from google.protobuf import timestamp_pb2
-from google.protobuf import wrappers_pb2
-from google.rpc import status_pb2
+
+
+_shared_modules = [
+    distribution_pb2,
+    http_pb2,
+    label_pb2,
+    api_metric_pb2,
+    monitored_resource_pb2,
+    any_pb2,
+    descriptor_pb2,
+    duration_pb2,
+    empty_pb2,
+    field_mask_pb2,
+    timestamp_pb2,
+    wrappers_pb2,
+    status_pb2,
+]
+
+_local_modules = [
+    alert_pb2,
+    alert_service_pb2,
+    common_pb2,
+    group_pb2,
+    group_service_pb2,
+    proto_metric_pb2,
+    metric_service_pb2,
+    mutation_record_pb2,
+    notification_pb2,
+    notification_service_pb2,
+    uptime_pb2,
+    uptime_service_pb2,
+]
 
 names = []
-for module in (
-        distribution_pb2,
-        http_pb2,
-        label_pb2,
-        api_metric_pb2,
-        monitored_resource_pb2,
-        alert_pb2,
-        alert_service_pb2,
-        common_pb2,
-        group_pb2,
-        group_service_pb2,
-        proto_metric_pb2,
-        metric_service_pb2,
-        mutation_record_pb2,
-        notification_pb2,
-        notification_service_pb2,
-        uptime_pb2,
-        uptime_service_pb2,
-        any_pb2,
-        descriptor_pb2,
-        duration_pb2,
-        empty_pb2,
-        field_mask_pb2,
-        timestamp_pb2,
-        wrappers_pb2,
-        status_pb2,
-):
+
+for module in _shared_modules:
+    for name, message in get_messages(module).items():
+        setattr(sys.modules[__name__], name, message)
+        names.append(name)
+
+for module in _local_modules:
     for name, message in get_messages(module).items():
         message.__module__ = 'google.cloud.monitoring_v3.types'
         setattr(sys.modules[__name__], name, message)