Eugene Kapun <abacabadabac...@gmail.com> added the comment:

Empty string is an iterable of integers in the range 0 <= x < 256, so it should 
be allowed.

>>> all(isinstance(x, int) and 0 <= x < 256 for x in "")
True
>>> bytearray()[:] = ""
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: string argument without an encoding

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue8401>
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