Я устанавливаю pyVows, как указано в ссылке http://heynemann.github.com/pyvows/#install, но выдает ошибку:
$ sudo apt-get install libxslt-dev libxml2-dev libevent-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package libxslt-dev
E: Unable to locate package libxml2-dev
E: Unable to locate package libevent-dev