为什么我的 xml 解析在我的 python 字典中多次存储相同的结果？

Question

我正在尝试解析当用户在 python 中输入条件时返回的 xml 结果，以便从外部 api 请求数据。它确实有效，但问题是，returning/printing 多次出现相同的结果。请帮忙！

anime= []
anime_details= []
title= []
pic= []
plot = []
    
#loop used to iterate over each tag under anime
for tag in anime_info.findall('anime/info'):

    #expression used to store tag discriptions 
    value = tag.attrib['type']

    #bool used to check any tag that contained a picture
    if value == 'Picture':
        #expression used to store the url for the image of the anime
        pic = tag.attrib['src']
        # anime_details.append(pic)

    #bool used to check any tag that contained the title of the anime
    if value == 'Main title':
        #expression used to print the data that is within the tag eg:name of anime
        title = tag.text
        # anime_details.append(title)
    
    #bool used to check any tag that contained the plot 
    if value == "Plot Summary":
        #expression used to print the data that is within the tag eg:summerization of plot
        plot = tag.text
    
    #expression used to add anime details to the anime_details dictionary
    anime_details.append({'title': title, 'picture': pic, 'plot': plot})

# anime.append(anime_details)
for anime_details in anime_details:
    print(anime_details['title'])
    print(anime_details['picture'])
    print(anime_details['plot'])

Output

XML Snip

Answer 1

在您的代码中，索引循环是数组：

for anime_details in anime_details:

Answer 2

您在 anime/info 上循环播放 xml 文件，而不是循环播放动漫，然后在动漫中搜索信息。这意味着每个信息你得到一个 anime_details，所以每个动漫得到多个 anime_details :

…
animes_details = []

# loop on anime nodes
for anime_node in anime_info.findall("anime"):

    # set default valued
    title = "?"
    pic = ""
    plot = ""

    # loop on info of anime node
    for tag in anime_node.findall('info'):

        #expression used to store tag discriptions 
        value = tag.attrib['type']
        …

    #expression used to add anime details to the anime_details dictionary
    animes_details.append({'title': title, 'picture': pic, 'plot': plot})

for anime_details in animes_details:
    print(anime_details['title'])
    print(anime_details['picture'])
    print(anime_details['plot'])

编辑：正如@Drey 所发现的，必须在内部循环之外设置默认值。

为什么我的 xml 解析在我的 python 字典中多次存储相同的结果？

Why is my xml parse storing the same result multiple times in my python dictionary?

python

dictionary

list

xml-parsing