How to solve the error "AttributeError: 'str' object has no attribute 'tell'" when uploading files on Google Cloud Storage in Python
We encounter this error when we try to write a file to Google Cloud Storage (GCS) in Python like so:
from google.cloud import storagepath_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:
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.