Resolve Method:
I found the problem. I had manually installed a newer version of python (version
3.2 but the version installed through packages is 2.7) and I just redirected /usr/bin/python to python3.2.
Apparently in 3.2 some syntax used in /usr/bin/pyclean is
not valid anymore. Restoring the original link of /usr/bin/python to /usr/bin/python2 solved
the problem. Now the scripts could be run without any issues.
the link: StackOverflow
依照这想法，我顺利攻克了这个问题。
我的系统是ubuntu 14.04，安装了python2.7
看到这里后，安装了python3，并按顺序运行下面命令
# 改动python为python2
rm /usr/bin/python
ln -s /usr/bin/python2 /usr/bin/python
# 删除python-configparser。再通过aptitude来安装
sudo apt-get purge --auto-remove python-configparser
sudo aptitude install python-configparser
