TypeError:列表索引必须是整数或切片，而不是str [英] TypeError: list indices must be integers or slices, not str

问题描述

我有两个列表，我想将它们合并到一个数组中，最后将其放入一个csv文件中.我是使用Python数组的新手，但我不明白如何避免出现此错误:

I've got two lists that I want to merge into a single array and finally put it in a csv file. I'm a newbie with Python arrays and I don't understand how I can avoid this error :

def fill_csv(self, array_urls, array_dates, csv_file_path):
    result_array = []
    array_length = str(len(array_dates))

    # We fill the CSV file
    file = open(csv_file_path, "w")
    csv_file = csv.writer(file, delimiter=';', lineterminator='\n')

    # We merge the two arrays in one

    for i in array_length:
        result_array[i][0].append(array_urls[i])
        result_array[i][1].append(array_dates[i])
        i += 1

    csv_file.writerows(result_array)

得到了:

  File "C:\Users\--\gcscan.py", line 63, in fill_csv
    result_array[i][0].append(array_urls[i])
TypeError: list indices must be integers or slices, not str

我的计数如何工作?

推荐答案

首先，array_length应该是整数而不是字符串:

First, array_length should be an integer and not a string:

array_length = len(array_dates)

第二，您的for循环应使用range构造:

Second, your for loop should be constructed using range:

for i in range(array_length):  # Use `xrange` for python 2.

第三，i将自动增加，因此删除以下行:

Third, i will increment automatically, so delete the following line:

i += 1

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