Python比较dict和json相等的问题

柔光的暖阳◎ 2022-06-18 02:49 243阅读 0赞

使用Python经常会遇到对比dict和json相等问题。  
1 比较两个json相等或包含：  
先将json转换dict。然后进行比较。  
转换的的方法：[http://blog.csdn.net/qq\_37023538/article/details/53693222][http_blog.csdn.net_qq_37023538_article_details_53693222]

2、 python递归对比两个dict的代码：

def cmp_dict(src_data,dst_data):     
        assert type(src_data) == type(dst_data),"type: '{}' != '{}'".format(type(src_data), type(dst_data))  
        if isinstance(src_data,dict):  
            assert len(src_data) == len(dst_data),"dict len: '{}' != '{}'".format(len(src_data), len(dst_data))  
            for key in src_data:                  
                assert dst_data.has_key(key)      
                cmp_dict(src_data[key],dst_data[key])      
        elif isinstance(src_data,list):                    
            assert len(src_data) == len(dst_data),"list len: '{}' != '{}'".format(len(src_data), len(dst_data))      
            for src_list, dst_list in zip(sorted(src_data), sorted(dst_data)):  
                cmp_dict(src_list, dst_list)  
        else:  
            assert src_data == dst_data,"value '{}' != '{}'".format(src_data, dst_data)  
    
    if __name__ == "__main__":  
        xx = {
       "111":None,"23456":{
       "22222":9999,"33333":"0000","list":["3333","4444","111"]}}  
        yy = {
       "111":None,"23456":{
       "22222":9999,"33333":"0000","list":["111","3333","4444"]}}  
        cmp_dict(xx,yy)

由于json，dict中可能包含list结果，所以要处理list。

3、 dst\_data包含src\_data：  
上面的代码去掉数据元素个数相等比较就可以了。

def cmp_dict(src_data,dst_data):     
        assert type(src_data) == type(dst_data),"type: '{}' != '{}'".format(type(src_data), type(dst_data))  
        if isinstance(src_data,dict):  
            for key in src_data:                  
                assert dst_data.has_key(key)      
                cmp_dict(src_data[key],dst_data[key])      
        elif isinstance(src_data,list):                        
            for src_list, dst_list in zip(sorted(src_data), sorted(dst_data)):  
                cmp_dict(src_list, dst_list)  
        else:  
            assert src_data == dst_data,"value '{}' != '{}'".format(src_data, dst_data)  
    
    if __name__ == "__main__":  
        xx = {
       "111":None,"23456":{
       "22222":9999,"33333":"0000","list":["3333","4444","111"]}}  
        yy = {
       "111":None,"23456":{
       "22222":9999,"33333":"0000","list":["111","3333","4444"]}}  
        cmp_dict(xx,yy)

python比较两个json文件  
方法二

def diff_dict(expect,actual):
            for k,v in expect.items():
                if k not in actual.keys():
                    return False
                v1 =actual[k]
    
            if type(v) != type(v1):
                return False
    
            elif type(v) == dict:    
                if not diff_dict(v,v1):
                    return False
    
            elif type(v) == list:
                if not diff_list(v,v1):
                    return False
            else:
                pass
    
        return True
    
    
    def diff_list(expect,actual):
        if len(expect) == 0:
            return True
    
        v=expect[0]
        for v1 in actual:
            if type(v) != type(v1):
                return False
    
            if type(v) == list:
                if not diff_list(v,v1):
                    return False
    
            if type(v) == dict:
                if not diff_dict(v,v1):
                    return False
    
        return True
    
    
    if __name__ == "__main__":
        get={"aa":"a","qq":[{"pp":"par","aaa":"aa","e":[{"a":"aaa"}]}]}
        text={"qq":[{"aaa":"par"}]}
        print diff_dict(text,get)

转载：[http://blog.csdn.net/qq\_37023538/article/details/54379591][http_blog.csdn.net_qq_37023538_article_details_54379591]

[http_blog.csdn.net_qq_37023538_article_details_53693222]: http://blog.csdn.net/qq_37023538/article/details/53693222
[http_blog.csdn.net_qq_37023538_article_details_54379591]: http://blog.csdn.net/qq_37023538/article/details/54379591