test_keeprefs.py 文件源码

def test_X(self):
        class X(Structure):
            _fields_ = [("p", POINTER(c_char_p))]
        x = X()
        i = c_char_p("abc def")
        from sys import getrefcount as grc
        print "2?", grc(i)
        x.p = pointer(i)
        print "3?", grc(i)
        for i in range(320):
            c_int(99)
            x.p[0]
        print x.p[0]
##        del x
##        print "2?", grc(i)
##        del i
        import gc
        gc.collect()
        for i in range(320):
            c_int(99)
            x.p[0]
        print x.p[0]
        print x.p.contents
##        print x._objects

        x.p[0] = "spam spam"
##        print x.p[0]
        print "+" * 42
        print x._objects