test_fileio.py 文件源码

def testBytesOpen(self):
        # Opening a bytes filename
        try:
            fn = TESTFN.encode("ascii")
        except UnicodeEncodeError:
            self.skipTest('could not encode %r to ascii' % TESTFN)
        f = _FileIO(fn, "w")
        try:
            f.write(b"abc")
            f.close()
            with open(TESTFN, "rb") as f:
                self.assertEqual(f.read(), b"abc")
        finally:
            os.unlink(TESTFN)