聚合行Pandas

Question

我对pandas很陌生。如果他们有相同的名字，我需要聚合'Names'，然后取'Rating'和'NumsHelpful'的平均值（不计算NaN）。'Review'应该连接起来，而'Weight(Pounds)'应该保持不变：

col names: ['Brand', 'Name', 'NumsHelpful', 'Rating', 'Weight(Pounds)', 'Review']

Name             'Brand'                             'Name'
1534             Zing Zang                Zing Zang Bloody Mary Mix, 32 fl oz   
1535             Zing Zang                Zing Zang Bloody Mary Mix, 32 fl oz   
1536             Zing Zang                Zing Zang Bloody Mary Mix, 32 fl oz   
1537             Zing Zang                Zing Zang Bloody Mary Mix, 32 fl oz   
1538             Zing Zang                Zing Zang Bloody Mary Mix, 32 fl oz   
1539             Zing Zang                Zing Zang Bloody Mary Mix, 32 fl oz   
1540             Zing Zang                Zing Zang Bloody Mary Mix, 32 fl oz   

        'NumsHelpful'     'Rating'       'Weight'
1534          NaN            2              4.5   
1535          NaN            2              4.5   
1536          NaN            NaN            4.5   
1537          NaN            NaN            4.5   
1538          2              NaN            4.5   
1539          3              5              4.5   
1540          5              NaN            4.5   

                        'Review'
1534                                     Yummy - Delish  
1535  The best Bloody Mary mix! - The best Bloody Ma...  
1536  Best Taste by far - I've tried several if not ...  
1537  Best bloody mary mix ever - This is also good ...  
1538  Outstanding - Has a small kick to it but very ...  
1539   OMG! So Good! - Spicy, terrific Bloody Mary mix!  
1540                      Good stuff - This is the best  

所以输出应该是这样的：

 'Brand'                'Name'                   'NumsHelpful'    'Rating' 
Zing Zang    Zing Zang Bloody Mary Mix, 32 fl oz     3.33             3

 'Weight'               'Review'
   4.5      Review1 / Review2 / ... / ReviewN

我该怎么走？谢谢。