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fix: call gc.collect() when exiting the NDB runtime context #373

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6 changes: 6 additions & 0 deletions google/cloud/ndb/client.py
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
"""A client for NDB which manages credentials, project, namespace."""

import contextlib
import gc
import grpc
import os
import requests
Expand Down Expand Up @@ -200,6 +201,11 @@ def context(
# Finish up any work left to do on the event loop
context.eventloop.run()

# Work around bug where thread started by `google.auth` angers the
# Google App Engine Python 2.7 Runtime. See issue #336.
# https://github.com/googleapis/python-ndb/issues/336
gc.collect()

@property
def _http(self):
"""Getter for object used for HTTP transport.
Expand Down