[Zope3-Users] XMLRPC Method with **kwargs

[Michael Howitz]

Am 14.12.2007 um 01:29 schrieb Jeremy Roberts:
> Hello zope3 users!
>
> I'm using Zope-3.3.1, and I'm trying to expose a method via xmlrpc  
> and I'm having trouble supporting a variable number of kwargs. My  
> use case does not know ahead of time how many arguments will be  
> passed to the method, hence the use of **kwargs in the method  
> signature.
>
> I get the error:
> Unexpected Zope exception: TypeError: renderCode() takes at most 1  
> argument (2 given).


Hi!

I think this is because XML-RPC does not support (optional) keyword  
arguments, you only may use positional arguments. A solution for  
optional arguments can be a dictionary containing the optional  
arguments for your XML-RPC-View as the last parameter. But this  
parameter is not optional itself.

So your view could look like:

class ToolCodeXMLRPC(MethodPublisher):
    """An XMLRPC view for ToolCode objects."""

    def renderCode(self, data):
        return self.context.renderCode(**data)


-- 
Yours sincerely,
Michael Howitz

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