'Construct an integer variable.
MASTER can be given as master widget.
VALUE is an optional value (defaults to 0)
NAME is an optional Tcl name (defaults to PY_VARnum).
If NAME matches an existing variable and VALUE is omitted
then the existing value is retained.'

def __init__(self, master=None, value=None, name=None):

    Variable.__init__(self, master, value, name)
