This is because a bytes object is not a sequence of bytes objects, like
strings. It's a sequence of small integer values, so you need to assign a
small integer value to it. You can assign b'a'[0] to it, or assign b'a' to
x[:1]. I guess we could specialcase length-1 bytes to make this work
'naturally', but I'm not sure that's the right approach. Guido?

On 2/25/07, Neil Schemenauer <[EMAIL PROTECTED]> wrote:

>>> x = b'a'
>>> x[0] = b'a'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'bytes' object cannot be interpreted as an index

Huh?  0 is not a 'bytes' object and I don't see how the RHS is being
used as an index.  Obviously I wanted something like:

>>> x[0] = ord(b'a')

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