Method _collect_if_necessary

Lib/test/test_weakref.py:2101–2104

(self)

        pass

    def _collect_if_necessary(self):
        # we create no ref-cycles so in CPython no gc should be needed
        if sys.implementation.name != 'cpython':
            support.gc_collect()

    def test_finalize(self):
        def add(x,y,z):