I am using Zope 2.1.0 (src install on RedHat Linux 6.1) and I'm having a bit of trouble with passing parameters to external functions. I'm not sure if it's a problem with Zope or maybe I just don't understand how it should work. Here's a description of what I'm seeing: I have an external function (myFunc) that looks like this: def myFunc(self, a, b): return a, b I have a dtml document that looks like this: myFunc returned: <dtml-var "myFunc(1,2)"> When I view the document, I get exactly what I expect: myFunc returned: (1,2) If, however, I modify myFunc to include a default value for b, like this: def myFunc(self, a, b=5): return a, b when I view the document again, I get: myFunc returned: (1,5) even though I specified a value for b, it still uses the default. Taking the story further, if I change my document as follows: myFunc returned: <dtml-var "myFunc(0,1,2)"> I get a valid result again: myFunc returned: (1,2) Also, if I change the document as follows: myFunc returned: <dtml-var "myFunc(1,b=2)"> it seems to work properly again displaying: myFunc returned: (1,2) Now, if we take this wierdness one step further and change the document to look like this: myFunc returned: <dtml-var "myFunc(a=1,b=2)"> Then I get a Zope error: "not enough arguments; expected 2, got 0" when I veiw it. It seems like the more I play with it, the stranger it gets. (It seems that the Zope gods are against me.) Any help would be appreciated. Thanks! Steve Jibson stevej@parlant.com