Multiple upload and downloads fail

[AndrewAXue]

Environment details

• OS type and version: Linux rodete
• Python version: Python 3.8.5
• pip version: pip 20.0.2
• google-cloud-storage version: 1.30.0

Steps to reproduce

Run:

from google.cloud import storage
client = storage.Client()
bucket = client.get_bucket('fishbucket1')
blob2 = bucket.blob('file')
blob2.upload_from_string('hi')
blob2.download_as_string()
blob2.upload_from_string('hi')

Stack trace

Traceback (most recent call last):
  File "/usr/local/google/home/aaxue/Documents/google/temp/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 1910, in upload_from_file
    created_json = self._do_upload(
  File "/usr/local/google/home/aaxue/Documents/google/temp/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 1758, in _do_upload
    response = self._do_multipart_upload(
  File "/usr/local/google/home/aaxue/Documents/google/temp/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 1404, in _do_multipart_upload
    response = upload.transmit(
  File "/usr/local/google/home/aaxue/Documents/google/temp/lib/python3.8/site-packages/google/resumable_media/requests/upload.py", line 148, in transmit
    self._process_response(response)
  File "/usr/local/google/home/aaxue/Documents/google/temp/lib/python3.8/site-packages/google/resumable_media/_upload.py", line 116, in _process_response
    _helpers.require_status_code(response, (http_client.OK,), self._get_status_code)
  File "/usr/local/google/home/aaxue/Documents/google/temp/lib/python3.8/site-packages/google/resumable_media/_helpers.py", line 106, in require_status_code
    raise common.InvalidResponse(
google.resumable_media.common.InvalidResponse: ('Request failed with status code', 400, 'Expected one of', <HTTPStatus.OK: 200>)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "t", line 7, in <module>
    blob2.upload_from_string('hi')
  File "/usr/local/google/home/aaxue/Documents/google/temp/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 2097, in upload_from_string
    self.upload_from_file(
  File "/usr/local/google/home/aaxue/Documents/google/temp/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 1925, in upload_from_file
    _raise_from_invalid_response(exc)
  File "/usr/local/google/home/aaxue/Documents/google/temp/lib/python3.8/site-packages/google/cloud/storage/blob.py", line 3262, in _raise_from_invalid_response
    raise exceptions.from_http_status(response.status_code, message, response=response)
google.api_core.exceptions.BadRequest: 400 POST https://storage.googleapis.com/upload/storage/v1/b/fishbucket1/o?uploadType=multipart: ('Request failed with status code', 400, 'Expected one of', <HTTPStatus.OK: 200>)