def __init__(self,name='tree',title='tree',ttree=None):
""" empty constructor with a name and title.
"""
#if (ttree == None): self._constructor_empty(name,title)
#else: self._constructor_copy(self,ttree)
self.name = name
self.labels = []
self.varnames = []
self.vars = {}
self.nentries = 0
self.ttree = TTree.__init__(self,name,title)
def __init__(self, name, title=None):
"""Initialize the tree."""
if title is None:
title = name
TTree.__init__(self, name, title)
self._fields = {}