test_ast.py 文件源码

def mod(self, mod, msg=None, mode="exec", *, exc=ValueError):
        mod.lineno = mod.col_offset = 0
        ast.fix_missing_locations(mod)
        with self.assertRaises(exc) as cm:
            compile(mod, "<test>", mode)
        if msg is not None:
            self.assertIn(msg, str(cm.exception))