iterutils.chunked and chunked_iter raise TypeError for bytes objects

[craigholm]

>>> chunked('abc123', 3)
['abc', '123']
>>> chunked(b'abc123', 3)
Traceback (most recent call last):
  File "<pyshell#13>", line 1, in <module>
    chunked(b'abc123', 3)
  File "C:\Program Files\Python38\lib\site-packages\boltons\iterutils.py", line 197, in chunked
    return list(chunk_iter)
  File "C:\Program Files\Python38\lib\site-packages\boltons\iterutils.py", line 242, in chunked_iter
    yield postprocess(cur_chunk)
  File "C:\Program Files\Python38\lib\site-packages\boltons\iterutils.py", line 233, in <lambda>
    postprocess = lambda chk, _sep=type(src)(): _sep.join(chk)
TypeError: sequence item 0: expected a bytes-like object, int found

[mahmoud]

Ah, shoot, this is because bytes objects in py3 turn into streams of integers when iterated on. But they stay bytes when sliced. I might need to put some special handling in here just for bytes to match expectations (and py2 behavior). Thanks for the heads up!