[Python-ideas] pickling obscured function references

[Guido van Rossum]

Actually there's more to it -- the source filename of a function may not
always be available, and whether it's available may depend on how it was
loaded. It's also a burden for Python implementations other than Python,
which may make such introspections much more expensive or at times
impossible.


On Tue, Feb 18, 2014 at 11:35 AM, Henry Harrison <
henry.schafer.harrison at gmail.com> wrote:

> Apologies. Yes, I had in mind something in-between a proposal and a
> question, which in retrospect was not the way to go about it. And I was not
> aware of python-list, so apologies again for not researching the options
> for having this discussion.
>
> In any case after sleeping on it I'm pretty sure the answer to my question
> is "because backwards compatibility" which means that the proposal would be
> moot. Sorry again for wasting your time.
>
> - Henry
>
>
>
>> On Feb 18, 2014, at 8:46, Terry Reedy <tjreedy at udel.edu> wrote:
>>
>> > On 2/18/2014 1:41 AM, Henry Harrison wrote:
>> >
>> >> I can't be the first to have thought of this, so there must be a reason
>> >> this isn't the case, but I have to ask. Why is __main__ the fallback
>> >> when pickle can't find a function reference?
>> >>
>> >> Instead of something like:
>> >> os.path.basename(inspect.getsourcefile(func))[:-3]
>> >>
>> >> Thanks for humoring my curiosity,
>> >
>> > A place to ask questions and 'humor curiosity' is python-list.
>> Python-ideas is for ideas for improving future version of python.
>>
>> I think he may have actually wanted to propose this change, but posted it
>> in an overly tentative way so that if it was a bad idea (as, after all,
>> most language change proposals are...), people would explain gently why
>> it's a bad idea instead of just rejecting it out of hand. (I don't think
>> it's a good idea to post that way on this list--in fact, it's likely to
>> have the opposite of the intended effect--but I can understand why someone
>> might expect it to be.)
>>
>
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-- 
--Guido van Rossum (python.org/~guido)
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