Dict issue?

General Usage
3

Thanks a lot for your prompt reply. Actually, I also stored other things in data, such as

  data                    = Dict()
    data["total_time"]      = dtime#Tf
    data["time"]            = 0.
    data["dt"]              = dtime
    data["friction"]        = fric
    data["dirichlet_grid"]  = [("back", (0,0,1)), 
                               ("front",(1,1,1)),
                               ("bottom",(1,1,1)),
                               ("left",(1,1,1)),
                               ("right",(1,1,1)),
                               ]      # => fix bottom nodes on X/Y/Z     dir

That was why I went for data=Dict(). Any suggestion to have both flexibility and efficiency?