Re: [Cheetahtemplate-discuss] Fwd: Cheetah, hard to debug ?!

[Tavis R. <ta...@re...>]

I've just cut 2.0b2. It includes this stuff.

On Friday 30 December 2005 12:39 pm, Tavis Rudd wrote:
> As JJ pointed out, this doesn't affect template modules that have been
> compiled on the command line and then imported as regular Python modules.
> Statically compile your templates and you'll get full tracebacks.
>
> However, it's not always possible or desirable to do statically compile.=
=20
> To see the full line info in tracebacks from dynamically compiled templat=
es
> it's necessary to keep a copy of the generated Python source in a file th=
at
> Python can access.  This wasn't possible with the old  'templateInstance =
=3D
> Template(src)' usage style, but it is with new 'templateClass =3D
> Template.compile(src)' style in Cheetah 2.0.
>
> I've just checked in the code to support it. It's turned off by default.=
=20
> To enable it you must create a subclass of Template that has the following
> class attributes:
>
> class NiceTracebackTemplate(Template):
>     _keepGeneratedPythonModulesForTracebacks =3D True
>     _cacheDirForGeneratedPythonModules =3D 'xxxx' # change to a dirname
>
> templateClass =3D NiceTracebackTemplate.compile(src)
>
> Cheers,
> Tavis
>
> On Friday 30 December 2005 4:50 am, Johan Fredrik =D8hman wrote:
> > Hi,
> > I have a project where I use Cheetath.  I load the templates runtime
> > through the Template(file=3D"") class.   However, I find Cheetath quite
> > hard to debug!!
> >
> > Look at this traceback:
> >
> > Traceback (most recent call last):
> >  File "/usr/local/lib/python2.4/site-packages/cherrypy/_cphttptools.py",
> > line 271, in run
> >    main()
> >  File "/usr/local/lib/python2.4/site-packages/cherrypy/_cphttptools.py",
> > line 502, in main
> >    body =3D page_handler(*args, **cherrypy.request.paramMap)
> >  File "/home/metro/common.py", line 94, in helper
> >    result =3D func(*p,**kwp)
> >  File "/home/metro/corp/partner.py", line 47, in viewclient
> >    return str(self.mainTemplate)
> >  File "<string>", line 50, in respond
> >  File "/usr/local/lib/python2.4/site-packages/Cheetah/Filters.py",
> > line 113, in filter
> >    filtered =3D str(val)
> >  File "<string>", line 30, in respond
> > TypeError: unsubscriptable object
> >
> > As you can see, it is not very obvious (to me at least) from this
> > traceback where the error is.  Are there any ways to get a more
> > descriptive traceback which describes better in what template file and
> > line which raises this error.
> >
> > thanks
> >
> > Johan Fredrik =D8hman
> >
> >
> > --
> > Johan Fredrik =D8hman
> >
> >
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