python-requests auth 405 错误和 AttributeError: 'unicode' object has no attribute 'items'答案

【问题标题】：python-requests auth 405 error and AttributeError: 'unicode' object has no attribute 'items'python-requests auth 405 错误和 AttributeError: 'unicode' object has no attribute 'items'
【发布时间】：2017-10-21 04:15:32
【问题描述】：

我正在尝试使用 python "requests" 模块来访问 SECURE NIFI rest API (https://nifi.apache.org/docs/nifi-docs/rest-api/)。到目前为止，我面临两个问题：

我尝试使用由 “请求”模块登录到安全的 NIFI（使用 OpenLDAP），但它给我“400”状态码。所以我必须在请求的 HEADERS 中传递“用户名和密码”才能获取用户令牌。
当我尝试将获得的令牌传递给进一步请求：

（例如，pg_resp=requests.get("https://localhost:9443/nifi-api/process-groups/2be8231f-015b-1000-47b1-428fc8c594e1", headers="Authorization: Bearer <auth_code>")），

它给了我这个错误“AttributeError: 'unicode' object has no attribute 'items'”。我试图将'unicode'更改为字符串，但'string'也没有属性'items'

两个 'unicode' 的回溯是：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/api.py", line 70, in get
    return request('get', url, params=params, **kwargs)
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/api.py", line 56, in request
    return session.request(method=method, url=url, **kwargs)
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/sessions.py", line 461, in request
    prep = self.prepare_request(req)
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/sessions.py", line 394, in prepare_request
    hooks=merge_hooks(request.hooks, self.hooks),
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/models.py", line 295, in prepare
    self.prepare_headers(headers)
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/models.py", line 407, in prepare_headers
    for header in headers.items():
AttributeError: 'unicode' object has no attribute 'items'

'str' 的回溯是：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/api.py", line 70, in get
    return request('get', url, params=params, **kwargs)
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/api.py", line 56, in request
    return session.request(method=method, url=url, **kwargs)
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/sessions.py", line 461, in request
    prep = self.prepare_request(req)
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/sessions.py", line 394, in prepare_request
    hooks=merge_hooks(request.hooks, self.hooks),
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/models.py", line 295, in prepare
    self.prepare_headers(headers)
  File "/home/shambakey1/miniconda2/lib/python2.7/site-packages/requests/models.py", line 407, in prepare_headers
    for header in headers.items():
AttributeError: 'str' object has no attribute 'items'

不知道是不是我做错了什么？

问候

【问题讨论】：

标签： python python-requests apache-nifi

【解决方案1】：

您需要将标头作为dict 传递给requests.get() 方法：

pg_resp=requests.get(
    "https://localhost:9443/nifi-api/process-groups/2be8231f-015b-1000-47b1-428fc8c594e1",
    headers={"Authorization": "Bearer <auth_code>"}
)

请求模块试图将您的字符串解压缩为 dict（在其上调用 items()），而 str 和 unicode 都没有这种方法，因此出现错误。

【讨论】：