Not necessary
Not necessary

faulteh/symposion,pinax/symposion,euroscipy/symposion,faulteh/symposion,euroscipy/symposion,pyohio/symposion,pyconau2017/symposion,pyohio/symposion,pydata/symposion,pinax/symposion,pydata/symposion,toulibre/symposion,miurahr/symposion,pyconau2017/symposion,toulibre/symposion,miurahr/symposion