[issue31988] Saving bytearray to binary plist file doesn't work

[Serhiy Storchaka]

New submission from Serhiy Storchaka <storchaka+cpython at gmail.com>:

>>> import plistlib
>>> plistlib.dumps(bytearray(), fmt=plistlib.FMT_BINARY)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/serhiy/py/cpython/Lib/plistlib.py", line 962, in dumps
    dump(value, fp, fmt=fmt, skipkeys=skipkeys, sort_keys=sort_keys)
  File "/home/serhiy/py/cpython/Lib/plistlib.py", line 955, in dump
    writer.write(value)
  File "/home/serhiy/py/cpython/Lib/plistlib.py", line 703, in write
    self._flatten(value)
  File "/home/serhiy/py/cpython/Lib/plistlib.py", line 741, in _flatten
    if (type(value), value) in self._objtable:
TypeError: unhashable type: 'bytearray'

----------
components: Library (Lib)
messages: 305921
nosy: ronaldoussoren, serhiy.storchaka
priority: normal
severity: normal
status: open
title: Saving bytearray to binary plist file doesn't work
type: behavior
versions: Python 3.6, Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31988>
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