I got the binary data by "getPdf" method of SoftLayer's API.
Ref. BillingSoftLayer_Billing_Order_Quote::getPdf | SoftLayer Development Network - http://sldn.softlayer.com/reference/services/SoftLayer_Billing_Order_Quote/getPdf
Then I wanna create the PDF file from the binary data. Do you know how to proceed it?
the method return a binary data encoded in base 64, what you need to do is decode the binary data.
see this article about enconde and decode binary data.
https://code.tutsplus.com/tutorials/base64-encoding-and-decoding-using-python--cms-25588
the Python client returns a xmlrpc.client.Binary object so you need to work with that object here an example using the Python client and Python 3
Regards
This is my answer fo my question.