Package operation failed

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http://askubuntu.com – I tried to remove/add several python packages and always got the error message "Package operation failed" (using the ubuntu software center). When I tried to remove e.g. python-scipy using the terminal, I got the following: >pcfun27@pcfun27:~$ sudo apt-get remove python-scipy >Reading package lists... Done >Building dependency tree >Reading state information... Done >The following packages will be REMOVED: > python-scipy >0 upgraded, 0 newly installed, 1 to remove and 9 not upgraded. >5 not fully installed or removed. >After this operation, 22.6MB disk space (HowTos)