This should fix the test.test_warnings.CFilterTests
failing test in test_warnings
.
See https://bugs.python.org/issue27535 & https://github.com/python/cpython/pull/4489
As far as I know, https://github.com/python/cpython/pull/4508 and https://github.com/python/cpython/pull/4516 cannot/do not have to be implemented, since PyPy doesn't use an equivalent of _Py_IDENTIFIER
?