Module rfc822 - uses file-objects - why?

[Aahz Maruch]

In article <Tccl6.19348$AH6.2625576 at newsc.telia.net>,
Fredrik Lundh <fredrik at effbot.org> wrote:
>Thomas Volkmar Worm wrote:
>>
>> I started to write a little programm which reads mails from a POP3
>> account. To handle the message I thought, I use the rfc822 module or one
>> of its subclasses (mimetools). But the methods I want to use always
>> expect file-objects as parameters. Do I need to store every list/string
>> onto disk when I want to use these classes or methods on them?
>
>import StringIO
>file = StringIO.StringIO(data)

For performance:

try:
    from StringIO import StringIO
except ImportError:
    from cStringIO import StringIO

(I learned that idiom back when cStringIO wasn't automatically compiled;
I'm not sure it's necessary anymore.)
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