René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Blob upload_from_string AttributeError when using client argument","articleBody":"#### Environment details\r\n\r\n  - OS type and version: variant of Debian Linux\r\n  - Python version: 3.8.5\r\n  - pip version: 20.1.1\r\n  - `google-cloud-storage` version: 1.31.2\r\n\r\n#### Steps to reproduce\r\n\r\n  1. create `Blob` object using `from_string` without a specified `client`\r\n  2. use `Blob` `upload_from_string` with `client` argument\r\n\r\n#### Code example\r\n\r\n```python\r\nfrom google.cloud import storage\r\nfrom google.cloud.storage.blob import Blob \r\n\r\ndef reproduce_error():\r\n    storage_client = storage.Client()\r\n    blob = Blob.from_string(\"gs://jdimatteo-gunk/example/upload_from_string_error/reproduce_error.txt\")\r\n    blob.upload_from_string(\"foo\", client=storage_client)\r\n\r\ndef workaround_1():\r\n    storage_client = storage.Client()\r\n    blob = Blob.from_string(\r\n            \"gs://jdimatteo-gunk/example/upload_from_string_error/workaround_1.txt\",\r\n            client=storage_client)\r\n    blob.upload_from_string(\"workaround_1\\n\")\r\n\r\ndef workaround_2():\r\n    storage_client = storage.Client()\r\n    blob = Blob.from_string(\"gs://jdimatteo-gunk/example/upload_from_string_error/workaround_2.txt\")\r\n    blob.bucket._client = storage_client\r\n    blob.upload_from_string(\"workaround_2\\n\")\r\n\r\nworkaround_1()\r\nworkaround_2()\r\nreproduce_error()\r\n```\r\n\r\n#### Stack trace\r\n```\r\n$ python example.py \r\nTraceback (most recent call last):\r\n  File \"example.py\", line 24, in \u003cmodule\u003e\r\n    reproduce_error()\r\n  File \"example.py\", line 7, in reproduce_error\r\n    blob.upload_from_string(\"foo\", client=storage_client)\r\n  File \"/usr/local/google/home/jdimatteo/gunk/upload_from_string_error_example/venv/lib/python3.8/site-packages/google/cloud/storage/blob.py\", line 2440, in upload_from_string\r\n    self.upload_from_file(\r\n  File \"/usr/local/google/home/jdimatteo/gunk/upload_from_string_error_example/venv/lib/python3.8/site-packages/google/cloud/storage/blob.py\", line 2223, in upload_from_file\r\n    created_json = self._do_upload(\r\n  File \"/usr/local/google/home/jdimatteo/gunk/upload_from_string_error_example/venv/lib/python3.8/site-packages/google/cloud/storage/blob.py\", line 2055, in _do_upload\r\n    response = self._do_multipart_upload(\r\n  File \"/usr/local/google/home/jdimatteo/gunk/upload_from_string_error_example/venv/lib/python3.8/site-packages/google/cloud/storage/blob.py\", line 1614, in _do_multipart_upload\r\n    hostname=self.client._connection.API_BASE_URL, bucket_path=self.bucket.path\r\nAttributeError: 'NoneType' object has no attribute '_connection'\r\n$ gsutil cat gs://jdimatteo-gunk/example/upload_from_string_error/workaround_1.txt\r\nworkaround_1\r\n$ gsutil cat gs://jdimatteo-gunk/example/upload_from_string_error/workaround_2.txt\r\nworkaround_2\r\n```","author":{"url":"https://github.com/jdimatteo","@type":"Person","name":"jdimatteo"},"datePublished":"2020-10-01T19:55:15.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/286/python-storage/issues/286"}