[Zope] Changing External Python Methods

[Gidon Friedman]

update you script in the ZMI after changes. zope doesn't monitor your 
file system, you have to tell zope that you made changes to the file.

regards

gidon


Andreas Tille schrieb:
> Hello,
> 
> I'm fiddling arround with some External Python Methods and I have to admit
> that it is a real pain to debug those Methods - at least I did not found a
> reasonable way.  It makes me really crazy ist the fact that it seems that
> Zope just caches the first version of the file which I putted into the
> Extensions directory and later changes are simply ignored.
> 
> For instance I just try to do some processing onto an image named
> bland.gif which is in the same folder of ZMI as the External Method.
> I've got a.
> 
>    Error Type: IOError
>    Error Value: [Errno 2] No such file or directory: 'bland.gif'
> 
> Well, besides the fact that I would like to know how to reference those
> files I really want to know why the following code stolen from
> http://www.zopelabs.com/cookbook/1010702887 works
> 
>     def MakeThumbHi2(self, image="test"):
> 
> 	    oriImage = self.restrictedTraverse(image)
> 	    oriFile = cStringIO.StringIO(oriImage.data)
> 
> 	    image = PIL.Image.open(oriFile)
> 	    image.thumbnail(100, 100)
> 	    image_type = image.format
> 
> 	    thumbnailImage = cStringIO.StringIO()
> 	    image.save(thumbnailImage, image_type)
> 	    thumbnailImage.seek(0)
> 
> 	    return thumbnailImage.getvalue()
> 
> and if I just replace my very own External Method by just this code
> snipped (please note: there is no string 'bland.gif' in it - it was just in
> my former broken code)  I get the very same error message with the missing
> file 'bland.gif'.  It seems that there is something cached and I would
> like to know how to get the changed version into this cache.  Moreover
> it would be nice to enlighten me about some other way to reference
> files in the same ZMI folder from External Methods besides this way
> to ship a parameter.
> 
> Kind regards
> 
>         Andreas.
> 
> 
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