python之 json里字典中的value去重

 import simplejson as json

 with open(r'C:\Users\Desktop\test.txt', 'r' ) as f1， open(r'C:\Users\Desktop\newtest.txt', 'w') as f2:
     alist = []
     new_dict = {}
     for i in f1.readlines():
         alist.append(json.loads(i))

     for i in range(len(alist)):
         if not new_dict.has_key(alist[i]['key']):
             new_dict[alist[i]['key']] = True
             f2.writelines(json.dumps(alist[i]))
             f2.write('\n')

欢迎指正……

2017-09-13