def statedFunction():
    """This function writes a string to a file 
        and returns a predefined string

        returns "this creates state" 
     """
    f=open("bug",'a')
    f.write(" My help call just created state on disk")
    f.close()
    return "this creates state"
 
def foo(bar=statedFunction()):
    """ returns bar appended with as.
        
        bar the thing to append as to

            defaultes to a stated function
     """
    return "%s as"%bar