command-not-found crashed with NameError in __main__: name 'sys' is not defined

[Marcos K]

ran pst instead of !pst (pstree -panu.....)

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: command-not-found 0.2.44.1ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-22.36-generic 3.0.33
Uname: Linux 3.0.0-22-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Tue Jul 3 07:45:48 2012
ExecutablePath: /usr/lib/command-not-found
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/lib/command-not-found -- pst
PythonArgs: ['/usr/lib/command-not-found', '--', 'pst']
SourcePackage: command-not-found
Title: command-not-found crashed with NameError in __main__: name 'sys' is not defined
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/command-not-found", line 20, in <module>
     sys.exit(127)
 NameError: name 'sys' is not defined
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare