Estou tentando instalar o python-graph-tools no meu Ubuntu 15.10, mas ele diz que
python-graph-tool : Depends: libboost-iostreams1.55.0 but it is not installable
Depends: libboost-python1.55.0 but it is not installable
Depends: libboost-regex1.55.0 but it is not installable
Depends: libcairomm-1.0-1 (>= 1.6.4) but it is not installable
Depends: python-scipy but it is not going to be installed
Depends: libboost-graph1.55.0 but it is not installable
Depends: libboost-system1.55.0 but it is not installable
Depends: libboost-thread1.55.0 but it is not installable
Depends: python-matplotlib but it is not going to be installed
Depends: libcgal10 but it is not installable
E: Unable to correct problems, you have held broken packages.
Enquanto eu tenho libboost-iostream 1.58 no meu PC. Eu também tentei remover este pacote usando
sudo sudo apt-get --purge remove libboost-iostreams
E tentei instalar o libboost iostream 1.55 usando o código
sudo apt-get install libboost-iostreams-dev 1.55
mas novamente instala a versão 1.58.