我正在尝试使用 Python3 将指标发送到Hosted Graphite。网站上给出的示例是 Python2,我已经成功地将 TCP 和 UDP 示例移植到 Python3(尽管我没有经验,并且已经提交了示例以便可以更新文档),但是我无法获得 HTTP 方法工作。
Python2 示例如下所示:
import urllib2, base64
url = "https://hostedgraphite.com/api/v1/sink"
api_key = "YOUR-API-KEY"
request = urllib2.Request(url, "foo 1.2")
request.add_header("Authorization", "Basic %s" % base64.encodestring(api_key).strip())
result = urllib2.urlopen(request)
这成功,返回 HTTP 200。
到目前为止,我已经将这么多移植到 Python3,虽然我(最终)能够让它发出有效的 HTTP 请求(即没有语法错误),但请求失败,返回 HTTP 400
import urllib.request, base64
url = "https://hostedgraphite.com/api/v1/sink"
api_key = b'YOUR-API-KEY'
metric = "testing.python3.http 1".encode('utf-8')
request = urllib.request.Request(url, metric)
request.add_header("Authorization", "Basic %s" % base64.encodestring(api_key).strip())
result = urllib.request.urlopen(request)
完整的结果是:
>>> result = urllib.request.urlopen(request)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/Cellar/python3/3.3.1/Frameworks/Python.framework/Versions/3.3/lib/python3.3/urllib/request.py", line 160, in urlopen
return opener.open(url, data, timeout)
File "/usr/local/Cellar/python3/3.3.1/Frameworks/Python.framework/Versions/3.3/lib/python3.3/urllib/request.py", line 479, in open
response = meth(req, response)
File "/usr/local/Cellar/python3/3.3.1/Frameworks/Python.framework/Versions/3.3/lib/python3.3/urllib/request.py", line 591, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/local/Cellar/python3/3.3.1/Frameworks/Python.framework/Versions/3.3/lib/python3.3/urllib/request.py", line 517, in error
return self._call_chain(*args)
File "/usr/local/Cellar/python3/3.3.1/Frameworks/Python.framework/Versions/3.3/lib/python3.3/urllib/request.py", line 451, in _call_chain
result = func(*args)
File "/usr/local/Cellar/python3/3.3.1/Frameworks/Python.framework/Versions/3.3/lib/python3.3/urllib/request.py", line 599, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 400: Bad Request
我做错了什么很明显吗?关于如何捕获和比较成功(python2)和失败(python3)请求实际发送的内容有什么建议吗?