I have a role and I am trying to write a python script to access S3. It says boto3exception credentials not found. Do I need an AWS access key and password and keep in ~./aws/credentials to access S3?

CodePudding user response：

There are different ways in which you can supply credentials to boto3.

From the documentation:

The order in which Boto3 searches for credentials is:

1. Passing credentials as parameters in the boto.client() method
2. Passing credentials as parameters when creating a Session object
3. Environment variables
4. Shared credential file (~/.aws/credentials)
5. AWS config file (~/.aws/config)
6. Assume Role provider
7. Boto2 config file (/etc/boto.cfg and ~/.boto)
8. Instance metadata service on an Amazon EC2 instance that has an IAM role configured.

these are evaluated in order. Whichever one evaluates to credentials will be used.