解析JSON Github - Django 1.8

Question

我的views.py里有这个

def profile(request):
    parsedData = []
    if request.method == 'POST':
        username = request.POST.get('user')
        req = requests.get('https://api.github.com/users/' + username + '/repos') 
        jsonList = []
        jsonList.append(req.json())
        userData = {}
        data = ['owner']
        for data in jsonList:
            userData['html_url'] = data['owner'][0]['html_url']
            userData['created_at'] = data['created_at']
            userData['updated_at'] = data['updated_at']
            userData['forks_count'] = data['forks_count']
        parsedData.append(userData)
    return render(request, 'app/profile.html', {'data': parsedData})

这让我大吃一惊：

TypeError at /app/profile/

list indices must be integers, not str

这是一个由/repos返回的JSON示例：

  {
    "id": 77549474,
    "name": "acp",
    "full_name": "kkoci/acp",
    "owner": {
      "login": "kkoci",
      "id": 3047897,
      "avatar_url": "https://avatars0.githubusercontent.com/u/3047897?v=4",
      "gravatar_id": "",
      "url": "https://api.github.com/users/kkoci",
      "html_url": "https://github.com/kkoci",
      "followers_url": "https://api.github.com/users/kkoci/followers",
      "following_url": "https://api.github.com/users/kkoci/following{/other_user}",
      "gists_url": "https://api.github.com/users/kkoci/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/kkoci/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/kkoci/subscriptions",
      "organizations_url": "https://api.github.com/users/kkoci/orgs",
      "repos_url": "https://api.github.com/users/kkoci/repos",
      "events_url": "https://api.github.com/users/kkoci/events{/privacy}",
      "received_events_url": "https://api.github.com/users/kkoci/received_events",
      "type": "User",
      "site_admin": false
    },
    "private": false,
    "html_url": "https://github.com/kkoci/acp",
    "description": null,
    "fork": true,
    "url": "https://api.github.com/repos/kkoci/acp",
    "forks_url": "https://api.github.com/repos/kkoci/acp/forks",
    "keys_url": "https://api.github.com/repos/kkoci/acp/keys{/key_id}",
    "collaborators_url": "https://api.github.com/repos/kkoci/acp/collaborators{/collaborator}",
    "teams_url": "https://api.github.com/repos/kkoci/acp/teams",
    "hooks_url": "https://api.github.com/repos/kkoci/acp/hooks",
    "issue_events_url": "https://api.github.com/repos/kkoci/acp/issues/events{/number}",
    "events_url": "https://api.github.com/repos/kkoci/acp/events",
    "assignees_url": "https://api.github.com/repos/kkoci/acp/assignees{/user}",
    "branches_url": "https://api.github.com/repos/kkoci/acp/branches{/branch}",
    "tags_url": "https://api.github.com/repos/kkoci/acp/tags",
    "blobs_url": "https://api.github.com/repos/kkoci/acp/git/blobs{/sha}",
    "git_tags_url": "https://api.github.com/repos/kkoci/acp/git/tags{/sha}",
    "git_refs_url": "https://api.github.com/repos/kkoci/acp/git/refs{/sha}",
    "trees_url": "https://api.github.com/repos/kkoci/acp/git/trees{/sha}",
    "statuses_url": "https://api.github.com/repos/kkoci/acp/statuses/{sha}",
    "languages_url": "https://api.github.com/repos/kkoci/acp/languages",
    "stargazers_url": "https://api.github.com/repos/kkoci/acp/stargazers",
    "contributors_url": "https://api.github.com/repos/kkoci/acp/contributors",
    "subscribers_url": "https://api.github.com/repos/kkoci/acp/subscribers",
    "subscription_url": "https://api.github.com/repos/kkoci/acp/subscription",
    "commits_url": "https://api.github.com/repos/kkoci/acp/commits{/sha}",
    "git_commits_url": "https://api.github.com/repos/kkoci/acp/git/commits{/sha}",
    "comments_url": "https://api.github.com/repos/kkoci/acp/comments{/number}",
    "issue_comment_url": "https://api.github.com/repos/kkoci/acp/issues/comments{/number}",
    "contents_url": "https://api.github.com/repos/kkoci/acp/contents/{+path}",
    "compare_url": "https://api.github.com/repos/kkoci/acp/compare/{base}...{head}",
    "merges_url": "https://api.github.com/repos/kkoci/acp/merges",
    "archive_url": "https://api.github.com/repos/kkoci/acp/{archive_format}{/ref}",
    "downloads_url": "https://api.github.com/repos/kkoci/acp/downloads",
    "issues_url": "https://api.github.com/repos/kkoci/acp/issues{/number}",
    "pulls_url": "https://api.github.com/repos/kkoci/acp/pulls{/number}",
    "milestones_url": "https://api.github.com/repos/kkoci/acp/milestones{/number}",
    "notifications_url": "https://api.github.com/repos/kkoci/acp/notifications{?since,all,participating}",
    "labels_url": "https://api.github.com/repos/kkoci/acp/labels{/name}",
    "releases_url": "https://api.github.com/repos/kkoci/acp/releases{/id}",
    "deployments_url": "https://api.github.com/repos/kkoci/acp/deployments",
    "created_at": "2016-12-28T17:23:45Z",
    "updated_at": "2016-12-28T17:23:46Z",
    "pushed_at": "2016-12-28T13:00:52Z",
    "git_url": "git://github.com/kkoci/acp.git",
    "ssh_url": "git@github.com:kkoci/acp.git",
    "clone_url": "https://github.com/kkoci/acp.git",
    "svn_url": "https://github.com/kkoci/acp",
    "homepage": null,
    "size": 113,
    "stargazers_count": 0,
    "watchers_count": 0,
    "language": "Python",
    "has_issues": false,
    "has_projects": true,
    "has_downloads": true,
    "has_wiki": true,
    "has_pages": false,
    "forks_count": 0,
    "mirror_url": null,
    "archived": false,
    "open_issues_count": 0,
    "license": null,
    "forks": 0,
    "open_issues": 0,
    "watchers": 0,
    "default_branch": "8.0"
  },

我试过很多种方法，但是错误仍然存在，有什么想法吗？

编辑

这个错误出现在这一行userData['html_url'] = data['owner'][0]['html_url']上，但在其他代码中，这只是我尝试过的两种方法的一个例子。错误仍然存在。

Answer 1

来自github的响应已经是一个列表，所以您的jsonList中的第一个元素是list，这就是异常的原因。

改为：

jsonList=req.json()

它应该能起作用

Answer 2

问题是，您正在将响应附加到列表中。然后，响应只包含一个JSON对象。

因此，您甚至不必循环它。只需直接赋值。

data = req.json()
userData = {}
# Copy values right away
userData['html_url']    = data['owner'][0]['html_url']
userData['created_at']  = data['created_at']
userData['updated_at']  = data['updated_at']
userData['forks_count'] = data['forks_count']

然后，在您的响应中，如果客户端没有期望列表，则不需要将userData附加到列表类型。直接把它传递给：

return render(request, 'app/profile.html', {'data': userData})

Answer 3

data = ['owner']的意思是data是一个包含一个字符串owner的列表，但并不意味着它是一个包含一个键owner的字典(正确的一个应该类似于data={"owner": None})。

因此，当您像data["owner"]一样访问它时，您试图像使用字典一样使用它，但它是一个列表。

这就是为什么会出现错误：list indices must be integers, not str。