"unlist" a list

[Klaus Hoeppner]

Hi,
maybe a silly question:

I use a funktion that is defined as foo(v1,v2,*args), i.e. it is
called as
  a = foo(v1,v2,opt1,opt2,opt3...)
(in fact in my case foo is Tkinter.OptionMenu)

Unfortunately, I have the optional arguments in list
  options = [opt1,opt2,opt3,...]
and oviously foo(v1,v2,options) goes wrong since foo assumes that
opt1 is the list options.
So I would need something like a unlist-operator telling foo that
the list is not the single first optional arguments but the members
of the list are the optional arguments.

Any idea?

Regards
Klaus