Question

我有一个文本文件，如下所示：的 myFiles.txt

Dell    2015    A14523  Sam
Sony    2014    A74256  John
Acer    2018    A45656  Mark
Sony    2007    S12345  James

当我将索引作为输入时，我想删除数据，因此，我将文本文件转换为字典。通过这种方式，我得到了我的文本文件的索引。但是当我从字典中删除任何数据并将其余数据写入文本文件时，会发生键错误。因为当我从字典中删除数据时，索引保持不变例如：我为不同的密钥创建了4行，即1,2,3和4 当我从索引2中删除数据时，字典索引保持不变，我留下1,3和4，当我将数据重写为文本文件时，它将给出关键错误。如何从文本文件中删除数据。我是python的新手。帮我解决一下

def deleteFunction(self):
    ownerListDic = {}
    num = 1
    with open("myFiles.txt", "r") as oy:
        for line in oy:

            li = line.strip().split()
            ownerListDic[num] = {"name": li[0], "purchase": li[
                1], "bluePlate": li[2], "owner": li[3]}
            num += 1
    # enter the record id to delete from the text file
    indexId = int(input("Enter record ID: "))
    if indexId in ownerListDic:
        # prompting to confirm the user you are going to delete
        # this data
        print(("You arev about to delete " + ''.join(ownerListDic[indexId]['name'] +
                                                     " " + ownerListDic[indexId]['purchase'] + " " + ownerListDic[indexId]["bluePlate"] + " " + ownerListDic[indexId]['owner'])) + " .")
        # ask user to delete the data
        delete = input(
            "Do you wish to delete this record (Y/N): ").upper()
        # if yes then data will delete
        if delete == "Y":
            ownerListDic.pop(indexId, None)
            num=1
            with open("myFiles.txt", 'w') as log:
                for dataValue in ownerListDic.values():

                    log.write(ownerListDic[num]['name'] +
                              "\t" + ownerListDic[num]['purchase'] + "\t" + ownerListDic[num]["bluePlate"] + "\t" + ownerListDic[num]['owner'] + "\n")
                    num += 1

                # after deletion this message will print
                print("Record deleted.")

我从字典中删除了数据并将字典的数据写入文本文件并出现了关键错误？

0 个答案: