Is email package thread safe? (fwd)

[Roman Suzi]

On Thu, 10 Feb 2005, Antoon Pardon wrote:

> Op 2005-02-09, Roman Suzi schreef <rnd at onego.ru>:
>> On Wed, 9 Feb 2005, Antoon Pardon wrote:
>>
>>> Op 2005-02-09, Roman Suzi schreef <rnd at onego.ru>:
>>>>
>>>> Just to be sure, is email package of Python 2.3 thread-safe or not
>>>> (to use, for example, in python-milter?)
>>
>>>> Can I assume that everything
>>>> else without such notice is thread-safe?
>>>
>>> I doubt it. There is no indication that the email package uses any
>>> kind of locking. So multiple thread working on the same message
>>> will probably screw things up.
>>
>> Of course, I do not let threads to work on the same message!
>
> Why should that be: "off course"? The random module you spoke about
> was also only thread unsafe if you called the same random generator
> from various threads. Using a randon generator per thread shouldn't
> have been a problem. Since you mentioned that, I thought that was
> the kind of thread safety you were after.
>
>> I meant that the package doesn't pose other kinds of restrictions.
>> Can it work in _any_ situation work on two different messages at the same
>> time, without any interference?
>
> I can't give a guarantee, but there are no global statements and there
> doesn't seem to be assignments to cross module variables I think it
> would be a safe bet.

Thanks to all who discussed this. Really, I had the same thoughts about
1:1 object-thread relation being thread safe. I am doing further research and
if it will give interesting results, I shall post [solved] here.

Sincerely yours, Roman Suzi
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