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How to solve the error "AttributeError: 'str' object has no attribute 'tell'" when uploading files on Google Cloud Storage in Python
schedule Aug 11, 2023
Last updated local_offer
Tags Cloud Computing
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We encounter this error when we try to write a file to Google Cloud Storage (GCS) in Python like so:
from google.cloud import storage
path_to_private_key = './gcs-project-354207-099ef6796af6.json'client = storage.Client.from_service_account_json(json_credentials_path=path_to_private_key)bucket = client.get_bucket('example-bucket-skytowner')blob = bucket.blob('uploaded_sample.txt')blob.upload_from_file('./sample.txt')
AttributeError: 'str' object has no attribute 'tell'
Here, the highlighted line is causing the error.
The fix is to use the method upload_from_filename(~)
instead which expects the path of the file you wish to upload on GCS:
blob.upload_from_filename('./sample.txt')
On the other hand, the method upload_from_file(~)
expects a file
object, which can be obtained like so:
with open('./sample.txt', 'rb') as file: blob.upload_from_file(file)
Here, the second parameter 'rb'
means that we wish to read the file in binary format, which is what the upload_from_file(~)
method expects.
Published by Isshin Inada
Edited by 0 others
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