[issue10807] `b'dGVzdA==\n'.decode('base64')` raise exception

[yihuang]

New submission from yihuang <yi.codeplayer at gmail.com>:

>>> b'dGVzdA==\n'.decode('base64')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "../Lib/encodings/base64_codec.py", line 20, in base64_decode
    return (base64.decodebytes(input), len(input))
  File "../Lib/base64.py", line 359, in decodebytes
    raise TypeError("expected bytes, not %s" % s.__class__.__name__)
TypeError: expected bytes, not memoryview

----------
components: Unicode
messages: 125068
nosy: yi.codeplayer
priority: normal
severity: normal
status: open
title: `b'dGVzdA==\n'.decode('base64')` raise exception
type: behavior
versions: Python 3.2

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue10807>
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