[英]How to extract the HTTP error text from a requests response?
我有以下代碼:
tries = 10
for n in range(tries):
try:
....
responsedata = requests.get(url, data=data, headers=self.hed, verify=False)
responsedata.raise_for_status()
..
if .... :
break #exit loop condition
except (ChunkedEncodingError, requests.exceptions.HTTPError) as e:
print ("page #{0} run #{1} failed. Returned status code {2}. Msg: {3}. Retry.".format(page, n, responsedata.status_code, sys.exc_info()[0]))
if n == tries - 1:
raise e # exit the process
我看到的印刷品是:
page #53 run #0 failed. Returned status code 502. Msg: <class 'requests.exceptions.HTTPError'>. Retry.
page #1 run #1 failed. Returned status code 500. Msg: <class 'requests.exceptions.ChunkedEncodingError'>. Retry.
雖然這很好,但它並沒有給我關於這個問題的實際信息。 該消息只是告訴我異常標題。
如果我在異常發生時打印: responsedata.text
,我會看到:
Returned status code 502. Message is: ...
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"/>
<title>502 - Web server received an invalid response while acting as a gateway or proxy server.</title>
<style type="text/css">
<!--
body{margin:0;font-size:.7em;font-family:Verdana, Arial, Helvetica, sans-serif;background:#EEEEEE;}
fieldset{padding:0 15px 10px 15px;}
h1{font-size:2.4em;margin:0;color:#FFF;}
h2{font-size:1.7em;margin:0;color:#CC0000;}
h3{font-size:1.2em;margin:10px 0 0 0;color:#000000;}
#header{width:96%;margin:0 0 0 0;padding:6px 2% 6px 2%;font-family:"trebuchet MS", Verdana, sans-serif;color:#FFF;
background-color:#555555;}
#content{margin:0 0 0 2%;position:relative;}
.content-container{background:#FFF;width:96%;margin-top:8px;padding:10px;position:relative;}
-->
</style>
</head>
<body>
...
這是一個巨大的消息,其中大部分是垃圾,但它也說: 502 - Web server received an invalid response while acting as a gateway or proxy server.
我可以訪問此消息並將其打印到我的日志中嗎?
您可以使用responsedata.status_code
及其文本描述通過responsedata.reason
訪問響應的狀態代碼(請參閱http://docs.python-requests.org/en/master/api/中的更多內容)
如果您的端點在響應正文中返回詳細的、特定於應用程序的錯誤消息,您可以利用以下事實:請求HTTPError
保留對導致它被引發的Response
的引用:
from requests.exceptions import HTTPError
try:
# Some code that makes requests
except HTTPError as e:
print(e.response.text)
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