[Zope] How can I persist some simple data?

[Jeroen Baekelandt]

Have you tried putting your module which contains the classes in the
lib/python/Shared dir? I thought to have read somewhere that Zope doesn't
doe imports etc from the Extensions dir.

Jeroen

> -----Original Message-----
> From: kesmit@bellsouth.net [mailto:kesmit@bellsouth.net]On Behalf Of
> Kevin Smith
> Sent: dinsdag 18 januari 2000 22:08
> To: zope@zope.org
> Subject: [Zope] How can I persist some simple data?
>
>
>
> I am trying to create a product that will grab all of the weather
> information from a weather site and return it to the document
> so I can render it with a DTML method.  I have an extension method
> that is invoked with <dtml-var "download_weather(this())">.  The
> definition of download_weather (slightly stripped down) is as
> follows:
>
> def download_weather(loc):
>   city = capitalize(lower(loc.city))
>   state = upper(loc.state)
>
>   # Download HTML and strip excessive formatting.
>   data = urllib.urlopen(url).read()
>
>   # Grab the current conditions.
>   loc.current = get_current_conditions(data)
>
>   # Grab the extended forecast.
>   loc.forecast = get_extended_forecast(data)
>
>
> The weather object "loc" has a city and state property which is
> used to create the proper URL.  get_current_conditions and
> get_extended_forecast both return simple classes similar to the
> following:
>
> class Current:
>   def __init__(self,temperature,image,conditions):
>     self.temperature = temperature
>     self.image = image
>     self.conditions = conditions
>
> The problem comes when setting the loc.current and loc.forecast
> attributes.  They seem to do what they are supposed to when
> viewing the output in the management screens, but as soon as I
> view the output outside of the management screen I get the
> following error:
>
> Error Type: SystemError
> Error Value: Failed to import class Current from module __main__
>
> In addition to that, the weather object turns into a Folder object
> which can't be modified or deleted.  I still haven't figured out
> how to get rid of it.
>
> What am I doing wrong?
>
> --
> Kevin Smith
> anathema@iname.com
> carpe noctum
>
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