software-center crashed with SystemError in open(): E:Type 'a' is not known on line 58 in source list /etc/apt/sources.list

[cexen]

nothing

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: software-center 5.0
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu2
Architecture: i386
Date: Mon Sep 26 00:16:16 2011
ExecutablePath: /usr/share/software-center/software-center
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110921.2)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/software-center
PythonArgs: ['/usr/bin/software-center']
SourcePackage: software-center
Title: software-center crashed with SystemError in open(): E:Type 'a' is not known on line 58 in source list /etc/apt/sources.list
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Jean-Baptiste Lallement (jibel)]

Tha

[Jean-Baptiste Lallement (jibel)]

Thanks for your report. There is a syntax error at line 58 in /etc/apt/sources.list
I'm marking this as duplicate of bug 633626 because s-c should crash silently.