Fix Python – Pass a parameter to a fixture function

I am using py.test to test some DLL code wrapped in a python class MyTester.
For validating purpose I need to log some test data during the tests and do more processing afterwards. As I have many test_… files I want to reuse the tester object creation (instance of MyTester) for most of my tests.
As the tester object is the one which got the refe….