我有以下数据
+------+-------+---------+---------+---------+
| Name | Group | Limit1W | Limit1M | Limit3M |
+------+-------+---------+---------+---------+
| Bob | A | 100 | 50 | 0 |
| Bob | B | 100 | 50 | 0 |
| Alex | A | 20 | 50 | 0 |
| Alex | B | 0 | 0 | 0 |
+------+-------+---------+---------+---------+
我想要
+------+-------+---------+-------+
| Name | Group | Game | Limit |
+------+-------+---------+-------+
| Bob | A | Limit1W | 100 |
| Bob | A | Limit1M | 50 |
| Bob | A | Limit3M | 0 |
| Bob | B | Limit1W | 100 |
| Bob | B | Limit1M | 50 |
| Bob | B | Limit3M | 0 |
| Alex | A | Limit1W | 20 |
| Alex | A | Limit1M | 50 |
| Alex | A | Limit3M | 0 |
| Alex | B | Limit1W | 0 |
| Alex | B | Limit1M | 0 |
| Alex | B | Limit3M | 0 |
+------+-------+---------+-------+
我尝试过使用pivot_table，但我一直在努力： typeError只能将列表（而不是“元组”）连接到列表，即使限制只包含数字