di you mean that all __init__.py files are executed,  no matter what
application is being used ?

On Apr 28, 3:14 pm, Iceberg <iceb...@21cn.com> wrote:
> I don't have much to say about the helper. But when talking about the
> __init__.py proposal, I still think it is dangerous. The "pollution"
> is not just about elegance or so, it could be about totally unusable.
> Should namespace collision happen, the first app being visited
> overwhelms the latter, the latter would certainly break.
>
> Actually I had some thinking about this topic, I even tried to somehow
> "unset" the sys.path after an app request had been served, therefore
> no pollution. But I gave up eventually because I thought that could
> not be multi thread safe.
>
> Take your own risk.
>
> On Apr28, 7:10pm, desfrenes <desfre...@gmail.com> wrote:
>
> > I see... but I don't think the helper would be that useful because
> > imported modules may themselves import other modules, with the usual
> > "import" keyword, not the helper.
>
> > Perhaps applications could have the privilege to install libraries in
> > contrib when they install ? Some post-install script could be
> > executed. Of course then there would be a need of a post-deinstall
> > script.
>
> > I think the __init__.py polluting the sys.path is not that bad, at
> > least it's simple, keeps up with the "self-contained" philosophy and
> > the namespace collision risk should be low enough. Plus it lets the
> > user install the libraries in site-packages if he wants to, without
> > any change in the application code.
>
> > Or maybe I just think too much and I should get that application up
> > and running no matter how :-)
>
> > On Apr 28, 10:54 am, Iceberg <iceb...@21cn.com> wrote:
>
> > > I just guess, perhaps that would pollute the sys.path. Imagine this
> > > case, app_one and app_two both have a homebred module named "modules/
> > > mylib.py", you can not know which one is actually called when using
> > > just "import mylib".
>
> > > Searching from this maillist, I found some post relevant to this topic
> > > like this. Don't know whether that helper is finally accepted. Massimo
> > > might have something to 
> > > say.http://groups.google.com/group/web2py/browse_frm/thread/f9e117f081cfa...
>
> > > On Apr28, 4:09pm, desfrenes <desfre...@gmail.com> wrote:
>
> > > > Hello !
>
> > > > Because I needed mutagen in a project, I added this to the __init__.py
> > > > of my application:
>
> > > > import sys, os
> > > > # add modules dir to sys.path
> > > > sys.path.append( os.path.abspath(request.folder + 'modules/'))
>
> > > > It works like a charm but why isn't "modules" already in sys.path
> > > > since its purpose is to hold 3rd party modules that may be imported
> > > > later ?
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups 
"web2py Web Framework" group.
To post to this group, send email to web2py@googlegroups.com
To unsubscribe from this group, send email to 
web2py+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/web2py?hl=en
-~----------~----~----~----~------~----~------~--~---

Reply via email to