Julia multiple plot output

Code

```
using Plots
pyplot()
p1 = plot(rand(5))
p2 = plot(rand(50), reuse=false)
```

Output:

```
┌ Warning: No working GUI backend found for matplotlib
└ @ PyPlot ~/.julia/packages/PyPlot/NsAWt/src/init.jl:153
┌ Warning: Error requiring `PyPlot` from `Plots`
│   exception =
│    ArgumentError: not a path: `/home/archisman/.julia/packages/Plots/UTR4H/src/backends/pyplot.jl`
│    Stacktrace:
│      [1] RelocatableFolders.Path(mod::Module, dir::String, path::String, ignore::Nothing)
│        @ RelocatableFolders ~/.julia/packages/RelocatableFolders/xuLyx/src/RelocatableFolders.jl:55
│      [2] _path(sym::Function)
│        @ Plots ~/.julia/packages/Plots/UTR4H/src/backends.jl:59
│      [3] top-level scope
│        @ ~/.julia/packages/Plots/UTR4H/src/backends.jl:95
│      [4] eval
│        @ ./boot.jl:368 [inlined]
│      [5] eval
│        @ ~/.julia/packages/Plots/UTR4H/src/Plots.jl:1 [inlined]
│      [6] (::Plots.var"#638#641")()
│        @ Plots ~/.julia/packages/Requires/Z8rfN/src/require.jl:101
│      [7] macro expansion
│        @ timing.jl:382 [inlined]
│      [8] err(f::Any, listener::Module, modname::String, file::String, line::Any)
│        @ Requires ~/.julia/packages/Requires/Z8rfN/src/require.jl:47
│      [9] (::Plots.var"#637#640")()
│        @ Plots ~/.julia/packages/Requires/Z8rfN/src/require.jl:100
│     [10] withpath(f::Any, path::String)
│        @ Requires ~/.julia/packages/Requires/Z8rfN/src/require.jl:37
│     [11] (::Plots.var"#636#639")()
│        @ Plots ~/.julia/packages/Requires/Z8rfN/src/require.jl:99
│     [12] #invokelatest#2
│        @ ./essentials.jl:729 [inlined]
│     [13] invokelatest
│        @ ./essentials.jl:726 [inlined]
│     [14] foreach(f::typeof(Base.invokelatest), itr::Vector{Function})
│        @ Base ./abstractarray.jl:2774
│     [15] loadpkg(pkg::Base.PkgId)
│        @ Requires ~/.julia/packages/Requires/Z8rfN/src/require.jl:27
│     [16] top-level scope
│        @ ~/.julia/packages/Plots/UTR4H/src/backends.jl:810
│     [17] eval
│        @ ./boot.jl:368 [inlined]
│     [18] _initialize_backend(pkg::Plots.PyPlotBackend)
│        @ Plots ~/.julia/packages/Plots/UTR4H/src/backends.jl:809
│     [19] backend(pkg::Plots.PyPlotBackend)
│        @ Plots ~/.julia/packages/Plots/UTR4H/src/backends.jl:260
│     [20] #pyplot#315
│        @ ~/.julia/packages/Plots/UTR4H/src/backends.jl:81 [inlined]
│     [21] pyplot()
│        @ Plots ~/.julia/packages/Plots/UTR4H/src/backends.jl:81
│     [22] top-level scope
│        @ ~/Documents/GitHub/skyrmion-graphene/new.jl:4
└ @ Requires ~/.julia/packages/Requires/Z8rfN/src/require.jl:51
```