run.py crashed with UnicodeEncodeError in decode(): 'ascii' codec can't encode characters in position 30-33: ordinal not in range(128)

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chinese file name creashed

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: subdownloader 2.0.14-1
ProcVersionSignature: Ubuntu 3.8.0-2.6-generic 3.8.0-rc4
Uname: Linux 3.8.0-2-generic x86_64
ApportVersion: 2.8-0ubuntu3
Architecture: amd64
Date: Fri Feb 1 01:32:45 2013
ExecutablePath: /usr/share/subdownloader/run.py
InstallationDate: Installed on 2013-01-11 (20 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130104)
InterpreterPath: /usr/bin/python2.7
MarkForUpload: True
PackageArchitecture: all
ProcCmdline: python /usr/bin/subdownloader
ProcEnviron:
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/subdownloader']
SourcePackage: subdownloader
Title: run.py crashed with UnicodeEncodeError in decode(): 'ascii' codec can't encode characters in position 30-33: ordinal not in range(128)
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers