在下面的代码中:
#!/usr/local/bin/python
import json
APPLICATION_NAME = 'cc9226315643df89-36bf02429075329d0ba36748360d050c'
HEADERS1 = json.dumps(dict(Destination = u"/api/af/latest/applications/%s/rulesets" % (APPLICATION_NAME)))
print "Headers1 is %s" % (HEADERS1)
HEADERS2 = {'Destination': '/api/af/latest/applications/%s/rulesets' % (APPLICATION_NAME)}
print "Headers2 is %s" % (HEADERS2)
我得到以下输出:
Headers1 is {"Destination": "/api/af/latest/applications/cc9226315643df89-36bf02429075329d0ba36748360d050c/rulesets"}
Headers2 is {'Destination': '/api/af/latest/applications/cc9226315643df89-36bf02429075329d0ba36748360d050c/rulesets'}
但是当我尝试在使用 requests() 的 REST 调用中使用 HEADER1 或 HEADER2 时,我得到非常不同的结果:
SERVER_URL = 'http://1.1.33.109:8087%s' % (APP_PATH)
REQ_DATA = None
print "Headers are: ", HEADERS
print "SERVER_URL is: ", SERVER_URL
print "Request Data is:", REQ_DATA
print ""
RESPONSE = requests.request(
'MOVE',
SERVER_URL,
auth = ('admin', 'admin'),
verify = False,
data = REQ_DATA,
headers = HEADERS1 ) #<-- If I use HEADER1 it breaks, if I use HEADER2 it works
print "Move Ruleset back to the Application RESULT: %s\n" % (RESPONSE)
我通过 HEADER1 得到以下内容:
Traceback (most recent call last):
File "./myrest.py", line 234, in <module>
headers = HEADERS1 )
File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/requests/api.py", line 44, in request
return session.request(method=method, url=url, **kwargs)
File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/requests/sessions.py", line 324, in request
prep = req.prepare()
File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/requests/models.py", line 223, in prepare
p.prepare_headers(self.headers)
File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/requests/models.py", line 340, in prepare_headers
headers = dict((name.encode('ascii'), value) for name, value in headers.items())
AttributeError: 'str' object has no attribute 'items'
如果我使用 HEADER2,它会干净地执行:
Move Ruleset back to the Application RESULT: Response [200]
谁能解释一下有什么区别?
最佳答案
您正在传递一个字符串; headers
不能永远是一个 JSON 编码的字符串,它总是一个 Python 字典。
print
结果具有欺骗性; JSON 编码的对象看起来很像 Python 字典表示,但它们远不是一回事。
requests
API明确指出 headers
必须是一个字典:
headers
– (optional) Dictionary of HTTP Headers to send with theRequest
.
JSON 数据是您将作为内容发送到另一台服务器的数据,而不是您用来与 Python API 通信的数据。
关于python - 属性错误 : 'str' object has no attribute 'items' ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18867898/