[Zope-dev] "Problem" using External Method

[Chris McDonough]

Espen,

The files that external methods actually live in are not Python modules,
like normal Python modules.  Though I haven't tried your example, it's
likely that your reference to __main__ is confusing the external method
machinery.  Additionally, the output of "print" doesn't go to the remote
browser, it instead goes to the console.  You need to return a value to the
caller for it to be displayed on the remote browser.

Try instead (as an example):

class Testclass:
    def setdata(self,val1,val2,val3):
        self.data = [val1,val2,val3]
    def updatedata(self, index):
        self.data[index] = self.data[index]+1
    def display(self):
        print self.data

def createdata():
    x = Testclass()
    x.setdata(10, 20, 30)
    x.updatedata(2)
    return x.display()

----- Original Message -----
From: "Espen Sorbye Frederiksen" <ceeesf@cee.hw.ac.uk>
To: <zope-dev@zope.org>
Sent: Tuesday, January 23, 2001 5:52 PM
Subject: [Zope-dev] "Problem" using External Method


> The module below works using the python compiler
> class Testclass:
>     def setdata(self,val1,val2,val3):
>         self.data = [val1,val2,val3]
>     def updatedata(self, index):
>         self.data[index] = self.data[index]+1
>     def display(self):
>         print self.data
>
> x = Testclass()
> def createdata():
>     import __main__
>     __main__.x.setdata(10, 20, 30)
>     __main__.x.updateLog(2)
>     __main__.x.display()
>
> >>>createdata()
> >>>[10,20,31]
>
> However if I try to add it as an External Method( id= createdata) it
> doesn't
> seem to work. I've tried to call it using <dtml-var/call createdata>
> without success. Any suggestions what I do wrong.
> I am grateful for all comments,
>
> Espen
>
>
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