题
我怎么能看被发送的消息回来,对urllib的S-HTTP请求?如果是简单的HTTP,我只想看插座的交通路线,但不会为HTTPS工作。是否有一个调试标志,我可以设置将做到这一点?
import urllib
params = urllib.urlencode({'spam': 1, 'eggs': 2, 'bacon': 0})
f = urllib.urlopen("https://example.com/cgi-bin/query", params)
解决方案
没有,没有调试标志看这个。
您可以使用自己喜欢的调试器。这是最简单的选择。刚刚在的urlopen函数中添加一个断点,你就大功告成了。
另一种选择是写自己的下载功能:
def graburl(url, **params):
print "LOG: Going to %s with %r" % (url, params)
params = urllib.urlencode(params)
return urllib.urlopen(url, params)
和使用它是这样的:
f = graburl("https://example.com/cgi-bin/query", spam=1, eggs=2, bacon=0)
其他提示
您总是可以做mokeypatching一点点
import httplib
# override the HTTPS request class
class DebugHTTPS(httplib.HTTPS):
real_putheader = httplib.HTTPS.putheader
def putheader(self, *args, **kwargs):
print 'putheader(%s,%s)' % (args, kwargs)
result = self.real_putheader(self, *args, **kwargs)
return result
httplib.HTTPS = DebugHTTPS
# set a new default urlopener
import urllib
class DebugOpener(urllib.FancyURLopener):
def open(self, *args, **kwargs):
result = urllib.FancyURLopener.open(self, *args, **kwargs)
print 'response:'
print result.headers
return result
urllib._urlopener = DebugOpener()
params = urllib.urlencode({'spam': 1, 'eggs': 2, 'bacon': 0})
f = urllib.urlopen("https://www.google.com/", params)
给出的输出
putheader(('Content-Type', 'application/x-www-form-urlencoded'),{})
putheader(('Content-Length', '21'),{})
putheader(('Host', 'www.google.com'),{})
putheader(('User-Agent', 'Python-urllib/1.17'),{})
response:
Content-Type: text/html; charset=UTF-8
Content-Length: 1363
Date: Sun, 09 Aug 2009 12:49:59 GMT
Server: GFE/2.0
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