thanks Christian for suggestion. I thought if I modify postreview.py
then it will be difficult for me to roll out official updates to
individual users.
I did a workaround. Wrote following wrapper script to disable/enable
proxy. It's dirty but serves my purpose:

import _winreg, os, sys

if len(sys.argv) != 2:
    print "Usage: rr ChangeListId"
    sys.exit(0)

root = _winreg.HKEY_CURRENT_USER
keypath = "Software\Microsoft\Windows\CurrentVersion\Internet
Settings"
value_name = "ProxyEnable"
hKey = _winreg.OpenKey (root, keypath, 0, _winreg.KEY_READ |
_winreg.KEY_SET_VALUE)

existingValue, type = _winreg.QueryValueEx (hKey, value_name)
#Disable Proxy setting if ON.
if existingValue == 1:
    _winreg.SetValueEx (hKey, value_name, 0, _winreg.REG_DWORD, 0)

# Call post-review.exe
command = "post-review " + sys.argv[1]
os.system(command)

# If original setting was PROXY ON then turn it ON.
if existingValue == 1:
    _winreg.SetValueEx (hKey, value_name, 0, _winreg.REG_DWORD, 1)
_winreg.CloseKey(hKey)





On Nov 24, 4:45 pm, Christian Hammond <chip...@chipx86.com> wrote:
> Is the Review Board server on HTTP or HTTPS?
>
> It sounds like custom code would need to be added to specifically disable
> the proxy server. It's also possible that a 2.6 release would fix this
> issue, but I don't know.
>
> If you were to modify postreview.py , you could try adding some code like:
>
> proxy_support = urllib2.ProxyHandler({})
> opener = urllib2.build_opener(proxy_support)
> urllib2.install_opener(opener)
>
> in ReviewBoardServer.__init__ probably at the end.
>
> Christian
>
> --
> Christian Hammond - chip...@chipx86.com
> Review Board -http://www.reviewboard.org
> VMware, Inc. -http://www.vmware.com
>
>
>
> On Tue, Nov 24, 2009 at 4:30 PM, Akhilesh <akhileshjo...@gmail.com> wrote:
> > Thanks Christian. I tried setting http_proxy environment variable to
> > empty string but Windows wouldn't allow me. I set it to " " (with
> > space) - but as expected it didn't work.
>
> > Is there any work-around? The problem is that one of the sites in our
> > organization uses proxy and all developers from that site have to
> > toggle Proxy settings to access Reviewboard/Internet as by-pass proxy
> > option is not working for them.
>
> > I appreciate any help. I'm ready to test private code for post-review
> > as well if needed.
>
> > Regards,
> > Akhilesh
>
> > On Nov 24, 1:57 pm, Christian Hammond <chip...@chipx86.com> wrote:
> > > Sadly, this is due to Python's usage of the system proxy settings. I'd
> > have
> > > to see if there's anything we can do for this. On Linux, I know you can
> > set
> > > the HTTP_PROXY variable to an empty string to work around it, but I doubt
> > > that works on Windows...
>
> > > Christian
>
> > > --
> > > Christian Hammond - chip...@chipx86.com
> > > Review Board -http://www.reviewboard.org
> > > VMware, Inc. -http://www.vmware.com
>
> > > On Tue, Nov 24, 2009 at 8:16 AM, Akhilesh <akhileshjo...@gmail.com>
> > wrote:
> > > > We are facing a problem where if proxy settings are enabled in
> > > > Internet Explorer, post-review doesn't work (Proxy Error 502) but I we
> > > > disabled proxy settings, it works perfectly. so we added reviewboard
> > > > site under 'bypass proxy' settings ("Exceptions") but still same
> > > > problem. It appears that post-review doesn't honor the bypass proxy
> > > > settings. We have Python 2.5 installed.
>
> > > > Further, reviewboard site is accessible using Internet Explorer
> > > > whether proxy settings are on/off.
>
> > > > Here is trace of the error that we get from post-review - I see the
> > > > error returned by Proxy. Point is that we want to bypass the proxy but
> > > > that setting in IE is not honored. any ideas?
>
> > > >      <UL class=adminList>
> > > >        <LI id=L_10060_11>Error Code 10060: Connection timeout
> > > > <LI id=L_10060_12>Background: The gateway could not receive a timely
> > > > response fr
> > > > om the website you are trying to access. This might indicate that the
> > > > network is
> > > >  congested, or that the website is experiencing technical
> > > > difficulties.
> > > > <LI id=L_10060_13>Date: 11/16/2009 9:44:32 PM
> > > > <LI id=L_10060_14>Server: Server.Company.Com <<==Replaced
> > > > <LI id=L_10060_15>Source: Firewall
> > > >      </UL>
> > > >    </TD>
> > > >  </TR>
> > > >  </TBODY>
> > > > </TABLE>
> > > > </BODY>
> > > > </HTML>
>
> > > > Unable to accesshttp://10.0.3.83/api/json/accounts/login/. The host
> > > > path may be
> > > >  invalid
> > > > HTTP Error 504: Proxy Timeout ( The connection timed out. For more
> > > > information a
> > > > bout this event, see ISA Server Help.  )
>
> > > > --
> > > > Want to help the Review Board project? Donate today at
> > > >http://www.reviewboard.org/donate/
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> > --
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