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