[UIE蒸馏 Issue] UIE蒸馏依赖文件有错误utils.py：TypeError: string indices must be integers，以及缺少SchemaTree 库导入

[tingaicompass]

1.缺少依赖库导入
代码中有
def build_tree(schema, name='root'):
"""
Build the schema tree.
"""
schema_tree = SchemaTree(name)
for s in schema:
if isinstance(s, str):
schema_tree.add_child(SchemaTree(s))
elif isinstance(s, dict):
for k, v in s.items():
if isinstance(v, str):
child = [v]
elif isinstance(v, list):
添加---------------------
from paddlenlp.taskflow.utils import SchemaTree

2.程序部分有误
Traceback (most recent call last):
File "data_distill.py", line 128, in
do_data_distill()
File "data_distill.py", line 90, in do_data_distill
args.task_type)
File "/home/aistudio/data_distill/utils.py", line 510, in synthetic2distill
for key1 in pred.keys():
AttributeError: 'list' object has no attribute 'keys'

源码为：

        for key1 in pred.keys():
            for s in pred[key1]:
                ent = {
                    "text": s['text'],
                    "type": key1,
                    "start_index": s['start']
                }
                entity_list.append(ent)

修改为：
上述错误无，变为：TypeError: list indices must be integers or slices, not str
for key1 in pred:
for s in pred[key1]:

继续修改
for key1 in pred:
for s in key1:

报错：
File "/home/aistudio/data_distill/utils.py", line 513, in synthetic2distill
"text": s['text'],
TypeError: string indices must be integers

提个issue待解决吧

[linjieccc]

@dingidng 感谢反馈，您可以先参考这个PR修改下 PR: #3231