[Python-talk] Calling functions with variable number of arguments

[bruce.labitt at autoliv.com]

Say one has three functions, function 1 has one input argument, function 2 
has 2 input arguments and function 3 has no input arguments.

I have made a function list, and an argument list

def func1(n):
        print 'Function '+str(n)+' ran'

def func2( n, a ):
        print 'Function '+str(n)+' ran '+str(a)+'times'

def func3:
        print 'Function 3 ran'

funclist = [func1, func2, func3]
arglist  = [ a, (b,c), None ]

I'd like to execute something like this (which does not work)

for item, arg in zip( funclist, arglist ):
        item( arg )

If I run this, it dies on the call to func2, giving a TypeError Exception. 
 So I use *arg.  This only works for func2, but fails for func1 with 
TypeError because "argument after * must be a sequence"

I can get func1 & func3 to work if I modify the function func3 from above 
to

def func3(a): 
        print 'Function 3 ran'


So is there a way to get all three functions to work using a similar (or 
any) construction?

Thanks!
Bruce

Bruce Labitt
Autoliv Electronics
1011B Pawtucket Blvd, PO Box 1858
Lowell, MA  01853

Email: bruce.labitt at autoliv.com. 
Tel:  (978) 674-6526
Fax: (978) 674-6581 

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