出现类型错误：在Spacy中无法迭代“ Nonetype”以构建自定义NER模型

Question

我是Spacy的初学者。最近，我正在使用带有小数据集的spacy制作实体识别模型。我制作了包含加拿大城市信息（例如国家/地区，城市，省，邮政地址等）的csv文件。   https://dataturks.com免费的NER标签服务可为我的行元素添加标签 他们提供了convertDataturkSpacy（）方法来提供spacy兼容的json格式。 到目前为止，一切都很好，但是我越来越

  

TypeError：“ NoneType”对象不可迭代

这是我的摘录

import json
import logging
import spacy
import random
from spacy.util import minibatch, compounding
trainingfilename="C:/Users/codemen/Desktop/Timeseries Analytics/Canadianinfo.json"

logging.basicConfig(level=logging.INFO)




def ConvertDataturkToSpacy(trainingfilename):

    try:
        trainingData=[]
        lines=[]
        # reading file  and  formating  part
        with open(trainingfilename,'r') as f:
            lines=f.readlines()
        for line in lines:
            data=json.loads(line)
            text=data['content']
            entities=[]
            print('entties',entities)
            for annotation in data['annotation']:
                #print("Here is the thing")
                point=annotation['points'][0] #single point annotation part
                #print(point)
                labels=annotation['label']
                print("isintance",labels)
                if not isinstance(labels,list):#handling both list of labels or single label
                    labels=[labels]
                    print(labels)

                for label in labels:
                    #dataturks indices are inclusive but spacy indices are not so dealing with it by adding  with +1
                    #print("Test here")
                    entities.append((point['start'],point['end']+1,label))

            trainingData.append((text,{"entities":entities}))
        return trainingData
    except Exception as e:
        logging.exception("Unable to process item" + trainingfilename +"\n"+ "errror ="+str(e))
        return None

TrainingData=ConvertDataturkToSpacy(trainingfilename)

到目前为止，我已经发现我初始化的空列表实体[]不会在迭代过程中追加和更新。