Stepfan, I highly recommend you to use the Anaconda Python Distribution, if 
you are using Windows! Then you would also need pandoc, MiKTeX and some 
LaTeX editor to output the PDF. But you are right, Julia's package system 
is so much better! Genius.

The only thing I don't get is how to install several packages at once, I 
 wrote a function

julia> function Pkg.add(pkgs::Array{String, 1})
         Pkg.update()
         for pkg in pkgs                                                   
                           
           Pkg.add(pkg)
         end
       end
add (generic function with 2 methods)
 
julia> Pkg.add(["Arduino", "SymPy"])
ERROR: no method add(Array{ASCIIString, 1})

julia> ASCIIString <: String
true

julia> function Pkg.add(pkgs::Array{ASCIIString, 1}) 
         Pkg.update()
         for pkg in pkgs
           Pkg.add(pkg)
         end
       end
add (generic function with 3 methods)
 
julia> Pkg.add(["Arduino", "SymPy"])
INFO: Updating METADATA...

to do that, but it fails if the METADATA is updated in the progress. And 
it's kinda weird, because I saw an example on that in a video from you guys.

(Why does using Array{String, 1} doesnt work?)

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