[issue20047] bytearray partition bug

[Terry J. Reedy]

Terry J. Reedy added the comment:

Whatever the change, bytes and bytearray should act the same.

>>> b = bytes(range(8))
>>> b
b'\x00\x01\x02\x03\x04\x05\x06\x07'
>>> b.partition(3)
Traceback (most recent call last):
  File "<pyshell#2>", line 1, in <module>
    b.partition(3)
TypeError: expected bytes, bytearray or buffer compatible object

As noted in the thread, ba.partition(a) apparently is executed as ba.partition(bytearray(a)) if a is not a bytearray (or maybe not a buffer object). bytearray(3) == bytearray((0,0,0)) and the latter is not in ba and hence the output given is 'correct'.

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nosy: +terry.reedy

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20047>
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