Message 368425 - Python tracker

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Content 
There is a missing Py_DECREF in task_step_impl() in _asynciomodule.c:
https://github.com/python/cpython/blob/02fa0ea9c1073e4476c9bde3d7112f5dd964aa57/Modules/_asynciomodule.c#L2641

It should have the form:

    if (clear_exc) {
        Py_DECREF(exc);
    }

This was introduced here in 3.7:
https://github.com/python/cpython/commit/bca4939d806170c3ca5d05f23710d11a8f1669cf

I'm not sure of the likelihood of this ever getting triggered (it appears to be unlikely), but it should still be addressed.

I will file a patch shortly.