Python 将字典展平为格式化字符串

我在这个问题上纠缠了很长时间

假设我们有一个python字典，如下所示：

d = {'TOP': [{'S': [{'NP-TMP': [{'NP': [{'DT': ['This']}, {'NN': ['time']}]},
                        {'ADVP': [{'RP': ['around']}]}]},
            {'NP-SBJ': [{'PRP': ['they']}]},
            {'VP': [{'VBP': ["'re"]},
                    {'VP': [{'VBG': ['moving']},
                            {'ADVP': [{'RB': ['even']},
                                      {'RBR': ['faster']}]}]}]}]}]}

我想将其转换为以下格式：

(((((This)(time))((around)))((they))(('re)((moving)((even)(faster))))))

我尝试了以下代码，但无法继续

for tree in d.values():
    for i, j in tree[0].items():
        for n in j:
            for p in n.items():
                print(p)

---

递归生成器可以工作（虽然不是很好…）

结果是：

r = f"({''.join(sub(d))})"
print(r)
# (((((This)(time))((around)))((they))(('re)((moving)((even)(faster))))))

---

谢谢取消删除它：）

r = f"({''.join(sub(d))})"
print(r)
# (((((This)(time))((around)))((they))(('re)((moving)((even)(faster))))))