What is the equivalent of Python 3 sys.stdout.fileno() in Python 2

Question

I am working on a code in Python 2.7. I use a very specific library written partially in C with a Python API. This library uses printf to output to stdout. I would like to suppress that. I already found this question: How do I prevent a C shared library to print on stdout in python? All of the provided answers use sys.stdout.fileno(). When I run my code I get:

original_stdout_fd = sys.stdout.fileno()
AttributeError: 'FlushingStringIO' object has no attribute 'fileno'

I suspect the problem is that I am using Python 2.7. Are my assumptions correct and is there a way to achieve this with Python 2.7?

Answer 1

The problem was that sys.stdout was replaced by FlushingStringIO by a library: https://github.com/flexible-atomic-code/fac. It also somehow depends on this detail and breaks otherwise. As there is no reasonable alternative to the library there is no way to suppress stdout output in this case.