[Zope-dev] Re: PythonLibraries Product

[Seb Bacon]

Evan Simpson wrote:
> I'm thinking seriously about writing a Product to provide collections of 
> Python functions defined by a single source text -- PythonLibraries. 
> This would *not* be the same as Zope 3's persistent modules, although it 
> would provide some of the same benefits.
> 
> Here's the README.txt:
> 
> Python Libraries
> 
>   The Python Libraries Product provides support for collections of
>   restricted Python code.  A Python Library is similar to a Folder
>   full of Python-based Scripts, except that the functions in the
>   Library are more like ordinary Python functions than Scripts, and
>   a single persistent global variable namespace is shared among the
>   functions in the Library.

So AFAICT it's a convenience which allows you (a) to keep related 
functions together; and (b) to store local variables in a convenient 
place.  It definitely sounds useful but also a lot of work for something 
it's possible to manage without quite easily at the moment..?

Could you provide a brief summary of why this is better than a folder of 
python scripts?  Perhaps a use case which illustrates the problems of 
the current way of doing things?

seb