Python TypeError：＆＃39; NoneType＆＃39;对象没有属性＆＃39; __ getitem __＆＃39;用于Google搜索

Question

我有一个人和公司的列表，我正在尝试搜索谷歌，找出这些人的输入网址。

我的代码：

#!/usr/bin/python3
import json
import urllib2
import time

file = open('names_and_companies.txt', 'r')
lines =file.readlines()
file.close()

file_out = open('out-urls.txt', 'w')

for line in lines:
    line = line.strip()
    lst = line.split(",")
    search_term = lst[0] + " " + lst[1] #construct a search term using name and company
    search_term = search_term.replace(" ","+")

    time.sleep(1)
    encoded = urllib2.quote(search_term)
    rawData = urllib2.urlopen ('http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q='+encoded).read()

    jsonData = json.loads(rawData)
    print "\n\n\n" + search_term + "\n\n\n"


    searchResults = jsonData['responseData']['results']
    print searchResults

    for er in searchResults:
        link = er['url']
        if "www.linkedin.com" in link:
            print link
            file_out.write(lst[0] + " | " + lst[1] + " | " + link + "\n")

file_out.close()

当我运行它时，我收到以下错误：

追踪（最近一次通话）：   文件“/Users/InNov8/Desktop/conference/delete.py”，第30行，in     searchResults = jsonData ['responseData'] ['results'] TypeError：'NoneType'对象没有属性' getitem '

我知道之前已经介绍过这个主题，但是我是一个菜鸟，无法弄清楚如何将任何推荐的修复应用到我的特定代码中。

谢谢。

Answer 1

jsonData ['responseData']返回None，所以你不能索引它（jsonData ['responseData'] ['results']）

一种可能的解决方法是检查jsonData ['responseData']是否为None：

responseData = jsonData['responseData']
if responseData is not None: 
    searchResults = responseData['results']
    print searchResults

    for er in searchResults:
        link = er['url']
        if "www.linkedin.com" in link:
            print link
            file_out.write(lst[0] + " | " + lst[1] + " | " + link + "\n")