# Do not hard code credentials
client = boto3.client(
    's3',
    # Hard coded strings as credentials, not recommended.
    aws_access_key_id='AKIAIO5FODNN7EXAMPLE',
    aws_secret_access_key='ABCDEF+c2L7yXeGvUyrPgYsDnWRRC1AYEXAMPLE'
)

# adding another line