def write_Branch(node, node_file):
    #Check if file is valid
    if node_file isinstance(basestring):
        node_file = file(node_file, "wt")

        node_file.write(cPickle.dumps(node,1))

def read_Branch(node_file):
    #Check if file is valid
    if node_file isinstance(basestring):
        node_file = file(node_file, "rt")

        return cPickle.load(node_file)
    else:
        return None