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Date: Tue, 7 Jan 2014 12:53:04 +0100
From: Ervin =?utf-8?Q?Heged=C3=BCs?= <airween@gmail.com>
To: Steven D'Aprano <steve+comp.lang.python@pearwood.info>
Subject: Re: Bytes indexing returns an int
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Xref: csiph.com comp.lang.python:63423

hi,

On Tue, Jan 07, 2014 at 10:13:29PM +1100, Steven D'Aprano wrote:
> Does anyone know what the rationale behind making byte-string indexing
> return an int rather than a byte-string of length one?
> 
> That is, given b = b'xyz', b[1] returns 121 rather than b'y'.
> 
> This is especially surprising when one considers that it's easy to extract
> the ordinal value of a byte:
> 
> ord(b'y') => 121

Which Python version?

http://docs.python.org/2/reference/lexical_analysis.html#strings
"A prefix of 'b' or 'B' is ignored in Python 2;"

if you want to store the string literal as byte array, you have
to use "bytearray()" function:

>>> a = bytearray('xyz')
>>> a
bytearray(b'xyz')
>>> a[0]
120
>>> a[1]
121


http://docs.python.org/2/library/stdtypes.html
5.6. Sequence Types


hth,


a.