On Mon, Aug 31, 2009 at 14:52, P.J. Eby<pje@telecommunity.com> wrote:

At 01:39 PM 8/31/2009 -0700, Brett Cannon wrote:

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On Mon, Aug 31, 2009 at 12:59, Brett Cannon<brett@python.org> wrote:

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On Mon, Aug 31, 2009 at 12:27, Antoine Pitrou<solipsis@pitrou.net> wrote:

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Brett Cannon <brett <at> python.org> writes:

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I will plan to take this approach then; http://bugs.python.org/issue6811 will track all of this. Since this is a 3.2 thing I am not going to rush to implement this.

I still don't understand what the point is of this complicated approach (adding an argument to marshal.load()) compared to the simple and obvious approach (making co_filename mutable).

If we add the argument to marshal.load* we can eventually drop the file location string from marshal data entirely by requiring people to specify the filename to use when the code object is created. Making co_filename mutable simply doesn't allow for this case unless we decide a default value should be used instead.

I should also mention that I am +0 on the marshal.load* change. I could be convinced to try to pursue a mutable co_filenme direction, but considering the BDFL likes the marshal.load* approach and it opens up the possibility of compacting the marshal format I am leaning towards sticking with this initial direction.

Why not just try the code I posted earlier, that doesn't need a mutable attribute OR an API change?

Ignoring that 'new' is not in Python 3.x (luckily 'types' is), I want a proper solution that doesn't require reconstructing every code object that I happen to import. -Brett

On Mon, Aug 31, 2009 at 14:52, P.J. Eby<pje@telecommunity.com> wrote:

At 01:39 PM 8/31/2009 -0700, Brett Cannon wrote:

...

On Mon, Aug 31, 2009 at 12:59, Brett Cannon<brett@python.org> wrote:

...

On Mon, Aug 31, 2009 at 12:27, Antoine Pitrou<solipsis@pitrou.net> wrote:

...

Brett Cannon <brett <at> python.org> writes:

...

I will plan to take this approach then; http://bugs.python.org/issue6811 will track all of this. Since this is a 3.2 thing I am not going to rush to implement this.

I still don't understand what the point is of this complicated approach (adding an argument to marshal.load()) compared to the simple and obvious approach (making co_filename mutable).

If we add the argument to marshal.load* we can eventually drop the file location string from marshal data entirely by requiring people to specify the filename to use when the code object is created. Making co_filename mutable simply doesn't allow for this case unless we decide a default value should be used instead.

I should also mention that I am +0 on the marshal.load* change. I could be convinced to try to pursue a mutable co_filenme direction, but considering the BDFL likes the marshal.load* approach and it opens up the possibility of compacting the marshal format I am leaning towards sticking with this initial direction.

Why not just try the code I posted earlier, that doesn't need a mutable attribute OR an API change?

Ignoring that 'new' is not in Python 3.x (luckily 'types' is), I want a proper solution that doesn't require reconstructing every code object that I happen to import. -Brett