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Date: Thu, 30 May 2013 18:43:08 -0500
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Subject: Re: Surprising difference between StringIO.StringIO and io.StringIO
From: Skip Montanaro <skip@pobox.com>
To: Cameron Simpson <cs@zip.com.au>
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>
> I would expect io.StringIO to be a match for the io.* stuff in Python
> 3. So it should care whether it is a binary stream or a text stream.
> Whereas StringIO.StringIO is your good old Python 2 StringIO, which expects
> strs.
>
> On that basis, io.StringIO is a text stream, expecting Unicode
> objects for transcription. 'str' is, in that context, probably
> considered as 'bytes' in Python 3.
>

Thanks.  This example was based on a function in Matplotlib. It appears the
author switched from StringIO.StringIO to io.StringIO between 1.1 and 1.2.

Skip

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<div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margi=
n:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I would expect io=
.StringIO to be a match for the io.* stuff in Python<br>
3. So it should care whether it is a binary stream or a text stream.<br>
Whereas StringIO.StringIO is your good old Python 2 StringIO, which expects=
<br>
strs.<br>
<br>
On that basis, io.StringIO is a text stream, expecting Unicode<br>
objects for transcription. &#39;str&#39; is, in that context, probably<br>
considered as &#39;bytes&#39; in Python 3.<br></blockquote><div><br></div><=
div>Thanks. =C2=A0This example was based on a function in Matplotlib. It ap=
pears the author switched from StringIO.StringIO to io.StringIO between 1.1=
 and 1.2.</div>
<div><br></div><div>Skip</div><div><br></div></div><br>

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