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我正在使用来自http://swapi.co/api/的星球大战 API 。我可以很好地连接到它,我的项目进展顺利。但是,我遇到了以下错误消息:IndexError: list index out of range 错误。查看其他堆栈溢出问题,这似乎是一个错误。关于我的程序,我不确定如何解决它。这是代码:

url = ('http://swapi.co/api/' + str(view))
#Setting up a get request to pull the data from the URL
r = requests.get(url)
if r.status_code == 200:
   print("status_code", r.status_code)
else:
  print("Sorry it appears your connection failed!")

#Storing the API response in a variable
response_dict = r.json()
print("There are currently", response_dict['count'], "items to view")

repo_dicts = response_dict['results']

num = 0
while num < response_dict['count']:
  if view == 'films':
    repo_dict = repo_dicts[num]['title']
    print(str(num) + " " + repo_dict)
  elif view == 'starships':
    repo_dict = repo_dicts[num]['name']
    print(str(num) + " " + repo_dict)
  num += 1

现在给我带来问题的那条线是在那个 elif view == 'starships' 区域。实际上,如果使用 API,您可以看到某些类别,例如电影、人物、星际飞船等。除电影之外,所有类别中都包含超过 10 个内容。我还注意到,如果我去http://swapi.co/api/starships/4/将找不到详细信息。某些类别没有数据的事实是否会导致我的问题?感谢您的任何见解!

这是回溯错误消息:

Traceback (most recent call last):
  File "main.py", line 102, in <module>
  main()
  File "main.py", line 98, in main
  began()
  File "main.py", line 87, in began
  connect(view)
  File "main.py", line 31, in connect
  repo_dict = repo_dicts[num]['name']
 IndexError: list index out of range
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1 回答 1

3

遍历您使用foreach循环的结果,如下所示:

for item in repo_dicts:
    if view == 'films':
        repo_dict = item['title']
        print(str(num) + " " + repo_dict)
    elif view == 'starships':
        repo_dict = item['name']
        print(str(num) + " " + repo_dict)

原因是因为 api 返回 10 个项目,response_dict['results']但是response_dict['count']是 37 个。请参阅 api 文档了解为什么会发生这种情况。我猜这是可能发生的分页。

于 2016-07-01T14:50:21.937 回答