classification
Title: urllib.proxy_bypass_registry slow down under Windows if website has no reverse DNS and Fiddler is runing
Type: Stage:
Components: Library (Lib), Windows Versions: Python 2.7
process
Status: open Resolution:
Dependencies: Superseder:
Assigned To: Nosy List: aristotel, juliadolgova, orsenthil, steve.dower, tim.golden, zach.ware
Priority: normal Keywords:

Created on 2015-02-03 09:05 by aristotel, last changed 2017-02-18 12:52 by juliadolgova.

Messages (1)
msg235322 - (view) Author: Valeriy Osipov (aristotel) Date: 2015-02-03 09:05
Environment: OS Windows 8, Fiddler is running

To reproduce the issue launch this code snippet:

import requests
import datetime
import urllib

print datetime.datetime.now()
#print requests.get('http://torgi.gov.ru/lotSearchArchive.html?bidKindId=2')
#print urllib.proxy_bypass_registry('torgi.gov.ru')
print datetime.datetime.now()

This onу GET requests to this wesite takes 6-7 seconds. Now comment the following code from the urllib.py from the proxy_bypass_registry function:
try:
            fqdn = socket.getfqdn(rawHost)
            if fqdn != rawHost:
                host.append(fqdn)
        except socket.error:
            pass

Now the same GET request takes 2 second. It is normal because this website takes 2 seconds for response.
History
Date User Action Args
2017-02-18 12:52:23juliadolgovasetnosy: + juliadolgova
2015-03-08 17:25:32BreamoreBoysetnosy: + orsenthil
components: + Library (Lib)
2015-02-03 09:05:39aristotelcreate