AttributeError: 'NavigableString' object has no attribute 'keys' in Python

Question

我试图将数组中的数据转储到 csv 文件中，但出现以下错误： AttributeError：'NavigableString' 对象在 python 中没有属性 'keys'。当我尝试打印数组时，该数组有数据，但在尝试创建 csv 文件时它抛出错误。

这是我写的代码：

import requests
import csv
from bs4 import BeautifulSoup as bs

global newsitems
def loadRSS():
    url="https://rss.nytimes.com/services/xml/rss/nyt/Africa.xml"
    resp=requests.get(url)
    with open('topnewsfeed.xml','wb') as f:
        f.write(resp.content)

def extractData():
    infile = open("topnewsfeed.xml","r",encoding='utf-8')
    contents = infile.read()
    soup = bs(contents,'xml')
    guids= soup.find_all('guid')
    titles = soup.find_all('title')
    pubDates= soup.find_all('pubDate')
    descs= soup.find_all('description')
    links= soup.find_all('link')
    newsitems=[]
    for (guid,title,pubDate,desc,link) in zip(guids,titles,pubDates,descs,links):
        newsitems.append(guid.string)
        newsitems.append(title.string)
        newsitems.append(pubDate.string)
        newsitems.append(desc.string)
        newsitems.append(link.string)
    return newsitems

def savetoCSV(array,filename):
    fields=['Guid','Title','PubDate','Description','Link']
    with open(filename,'w') as csvfile:
        writer=csv.DictWriter(csvfile,fieldnames=fields)
        writer.writeheader()
        writer.writerows(array)
             
def run():
    loadRSS()
    newsitems=extractData()
    savetoCSV(newsitems,'topnews.csv')
run()

Answer 1

DictWriter 的 writerows 需要一个字典序列（字段名作为映射到值的键），而不是一个 NavigableString 对象序列，这就是 newsitems。

而不是制作一系列可导航的字符串：

    for (guid,title,pubDate,desc,link) in zip(guids,titles,pubDates,descs,links):
        newsitems.append(guid.string)
        newsitems.append(title.string)
        newsitems.append(pubDate.string)
        newsitems.append(desc.string)
        newsitems.append(link.string)

按照writerows 的预期制作字典列表。字典中的键应与您的 CSV 字段匹配 ('Guid','Title','PubDate','Description','Link')

    for (guid,title,pubDate,desc,link) in zip(guids,titles,pubDates,descs,links):
        newsitems.append({
                          'Guid': guid.string,
                          'Title': title.string,
                          'PubDate': pubDate.string,
                          'Description': desc.string,
                          'Link': link.string
                         }
        )

AttributeError: 'NavigableString' object has no attribute 'keys' in Python

AttributeError: 'NavigableString' object has no attribute 'keys' in Python

python

csv

python-3.x