specto crashed with TypeError in return_webpage(): %u format: a number is required, not str

[fain182]

easily repeatable:

open specto
click on the menu add a website monitor
insert website url
click "add"
- freeze -

I even tried to remove my ~/.config/specto, but crashed again.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: specto 0.3.1-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic i686
Architecture: i386
CheckboxSubmission: 2fca08263ded7c02d98f21fb8710ba12
CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f
Date: Sat Jul 2 19:32:40 2011
ExecutablePath: /usr/bin/specto
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/specto
ProcEnviron:
 LANGUAGE=it_IT:en
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/specto']
SourcePackage: specto
Title: specto crashed with TypeError in return_webpage(): %u format: a number is required, not str
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make Ubuntu better. This particular crash has already been reported and is a duplicate of bug #456095, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.