René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"'TestKMSIntegration.test_upload_new_blob_w_bucket_cmek_enabled' flakes w/ EC error","articleBody":"From [this Kokoro build failure](https://source.cloud.google.com/results/invocations/27fb932e-3234-4aac-a3a2-3715a0b6e76e/targets/cloud-devrel%2Fclient-libraries%2Fpython%2Fgoogleapis%2Fpython-storage%2Fpresubmit%2Fpresubmit/log):\r\n\r\n```python\r\n________ TestKMSIntegration.test_upload_new_blob_w_bucket_cmek_enabled _________\r\n\r\nself = \u003ctest_system.TestKMSIntegration testMethod=test_upload_new_blob_w_bucket_cmek_enabled\u003e\r\n\r\n    def test_upload_new_blob_w_bucket_cmek_enabled(self):\r\n        blob_name = \"test-blob\"\r\n        payload = b\"DEADBEEF\"\r\n        alt_payload = b\"NEWDEADBEEF\"\r\n\r\n        kms_key_name = self._kms_key_name()\r\n        self.bucket.default_kms_key_name = kms_key_name\r\n        self.bucket.patch()\r\n        self.assertEqual(self.bucket.default_kms_key_name, kms_key_name)\r\n\r\n        blob = self.bucket.blob(blob_name)\r\n        blob.upload_from_string(payload)\r\n        # We don't know the current version of the key.\r\n\u003e       self.assertTrue(blob.kms_key_name.startswith(kms_key_name))\r\nE       AttributeError: 'NoneType' object has no attribute 'startswith'\r\n\r\ntests/system/test_system.py:2029: AttributeError\r\n```\r\n\r\nSimilar to #190.  In this case, reloading the blob after a failure would likely catch up to the expected state.","author":{"url":"https://github.com/tseaver","@type":"Person","name":"tseaver"},"datePublished":"2020-08-11T22:19:16.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/239/python-storage/issues/239"}