apt-pbo: Package 'cowbuilder' is already installed. apt-pbo: Package 'xutils' is already installed. apt-pbo: Package 'libclass-makemethods-perl' is already installed. apt-pbo: Package 'libdevmapper1.02' is already installed. apt-pbo: Package 'python-matplotlib' is already installed. apt-pbo: Package 'libncursesw5' is already installed.