[Zope] Calling an python method from within a python method

[Dan Rusch]

Zopesters,

Does anyone know if it is possible to call an internal python method
(built with the Python Method object) from within an internal python
method (also built with the Python Method object)? 

For example:

I have an internal python method called convertDate built with the
Python Method object. Inside this method I would like to call another
internal python method called isLeapYear(). Can this be done, if so how?

Thanks,

DR