[Stackless] Cell pickling bug

[Christian Tismer]

Richard Tew wrote:
> On Nov 10, 2007 2:24 PM, Christian Tismer <tismer at stackless.com> wrote:
>> There is something else wrong with pickling of cells.
>> I will try to dig this up before a release.
>> This bugged me on EuroPython, but I forgot it.
> 
> There is a cell which has a reference to the "sub" function and the
> "sub" function has a reference to the cell in its closures.  The cell
> gets created before the function, but does not get built (have
> __setstate__ called on it) until after the function does.  And the
> function won't recognise the cell until Stackless has fixed its type
> when it is built.
> 
> I removed the call to PyCell_Check in funcobject.c:func_new() in order
> to see whether that would be enough, but this just results in an
> uncaught pickling error later on.
> 
> I don't see an easy fix :-(

There must be one since it worked, once.
Will look into this after closing a number
of other tasks...

ciao -- chris

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