# -*- coding: utf-8 -*-
"""
Created on Wed Nov 21 13:28:50 2018

@author: Angelo
"""
import json

def leggi_compositori(fname, criterio1="sonate", criterio2="opere"):
    """ Legge una lista json da fname e la stampa
    a video
    """
    with open(fname) as file:
        lista = json.load(file)
    for el in sorted(lista, key=lambda d: (d[criterio1], d[criterio2])):
        print (el)