Version conflicts in dependencies

[lukehsiao]

tensorboard 1.8.0 has requirement bleach==1.5.0, but you'll have bleach 2.1.3 which is incompatible.  
bleach 2.1.3 has requirement html5lib!=1.0b1,!=1.0b2,!=1.0b3,!=1.0b4,!=1.0b5,!=1.0b6,!=1.0b7,!=1.0b8,>
=0.99999999pre, but you'll have html5lib 0.9999999 which is incompatible.

bleach 2.1.3 is installed by jupyter. We also had

error: html5lib 1.0b8 is installed but html5lib==0.9999999 is required by {'tensorboard'}

which will hopefully get resolved in the next release of tensorboard [1].