[Python-Dev] __file__

[Guido van Rossum]

On Thu, Feb 25, 2010 at 3:50 PM, Michael Foord
<fuzzyman at voidspace.org.uk> wrote:
> On 25/02/2010 23:56, Greg Ewing wrote:
>>
>> Barry Warsaw wrote:
>>
>>> We discussed this at Pycon and agreed that we will not support
>>> source-less
>>> deployments by default. The source file must exist or it will be an
>>> ImportError.
>>>
>>> This does not mean source-less deployments are not possible though. To
>>> support this use case, you'd have to write a custom import hook.
>>
>> What????
>>
>> I don't like this idea at all. I object to being forced to
>> jump through an obscure hoop to do something that's been
>> totally straightforward until now.
>>
> I thought we agreed at the language summit that if a .pyc was in the place
> of the source file it *could* be imported from - making pyc only
> distributions possible. As the pyc files are in the __pycache__ (or
> whatever) directory by default they *won't* be importable without the source
> files. A pyc only distribution can easily be created though with this
> scheme.

That's also my recollection. Basically, for .pyc-only modules, nothing changes.

PS. I still prefer __compiled__ over __cached__ but I don't feel
strong about it.

> Michael
>
> --
> http://www.ironpythoninaction.com/
> http://www.voidspace.org.uk/blog
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