[Zope] External Method limits

[Dieter Maurer]

Lee Harr writes:
 > I am working through the section of the Zope Book on External Methods 
 > (chapter 8: Advanced Zope Scripting -- 
 > http://www.zope.org/Members/michel/ZB/ScriptingZope.dtml -- Secton: Using 
 > External Methods)
 > 
 > There is an example there which uses PIL that I am having some trouble with. 
 > Whenever I try to use makeThumbnail on a file which is more than about 60K I 
 > get the following error:
 > 
 > 
 > Error Type: TypeError
 > Error Value: expected string, ImplicitAcquirerWrapper found
 > ...
 > File /usr/local/www/Zope/Extensions/Thumbnail.py, line 18, in makeThumbnail
 > (Object: Traversable)
 > TypeError: (see above)
Seems you use "file.data".

This is a string for small file sizes but an object for large ones.
Use "str(file.data)", instead.


Dieter