so a little more clarity. I get nearly this same error when downloading the same object from boto3 if I try to get at it from an s3 resource like so:
` bad_s3_resource = boto3.resource("s3")
obj = bad_s3_resource.Object(bucket, key)
obj.get()["Body"]

botocore.exceptions.NoCredentialsError: Unable to locate credentials Only when I set the boto3 session with the appropriate profile does it work: sess = boto3.session.Session(profile_name="foo-profile")
s3_resource = sess.resource("s3")
obj = s3_resource.Object(bucket, key)
obj.get()["Body"]

<botocore.response.StreamingBody at 0x1463120d0> `
So this makes me wonder if there is a similar mechanism that’s giving me this error.