[BUG] no method matching getproperty and outdated matplotlib with the latest version and pyplot

[HumpyBlumpy]

Details

I am getting the following error and warning when try to display a plot constructed using scatter as follows:

pyplot()
p1=scatter(abs.(wf).^2)
display(p1)

The error and warning about outdated matplotlib (I performed the exact instructions it suggested but it didnt change anything; I also rebuilt Plots after performing the said instructions)

┌ Warning: You are using Matplotlib 2.2.3, which is no longer
│ officialy supported by the Plots community. To ensure smooth Plots.jl
│ integration update your Matplotlib library to a version >= 3.4.0
│ 
│ If you have used Conda.jl to install PyPlot (default installation),
│ upgrade your matplotlib via Conda.jl and rebuild the PyPlot.
│ 
│ If you are not sure, here are the default instructions:
│ 
│ In Julia REPL:
│ ```
│ import Pkg;
│ Pkg.add("Conda")
│ import Conda
│ Conda.update()
│ Pkg.build("PyPlot")
│ ```
│ 
└ @ Plots ~/.julia/packages/Plots/LSKOd/src/backends/pyplot.jl:29
ERROR: LoadError: MethodError: no method matching getproperty(::Dict{Any, Any}, ::String)
Closest candidates are:
  getproperty(::PyPlot.LazyPyModule, ::AbstractString) at /home/ron/.julia/packages/PyPlot/XaELc/src/plot3d.jl:16
  getproperty(::PyCall.PyObject, ::AbstractString) at /home/ron/.julia/packages/PyCall/3fwVL/src/PyCall.jl:311
  getproperty(::PyPlot.Figure, ::AbstractString) at /home/ron/.julia/packages/PyPlot/XaELc/src/PyPlot.jl:66
  ...
Stacktrace:
 [1] _before_layout_calcs(plt::Plots.Plot{Plots.PyPlotBackend})
   @ Plots ~/.julia/packages/Plots/LSKOd/src/backends/pyplot.jl:1209
 [2] prepare_output(plt::Plots.Plot{Plots.PyPlotBackend})
   @ Plots ~/.julia/packages/Plots/LSKOd/src/plot.jl:217
 [3] display(#unused#::Plots.PlotsDisplay, plt::Plots.Plot{Plots.PyPlotBackend})
   @ Plots ~/.julia/packages/Plots/LSKOd/src/output.jl:147
 [4] display(x::Any)
   @ Base.Multimedia ./multimedia.jl:328
 [5] #76
   @ ~/.vscode/extensions/julialang.language-julia-1.4.3/scripts/packages/VSCodeServer/src/display.jl:156 [inlined]
 [6] with_no_default_display(f::VSCodeServer.var"#76#77"{Plots.Plot{Plots.PyPlotBackend}})
   @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.4.3/scripts/packages/VSCodeServer/src/display.jl:34
 [7] display(d::VSCodeServer.InlineDisplay, x::Plots.Plot{Plots.PyPlotBackend})
   @ VSCodeServer ~/.vscode/extensions/julialang.language-julia-1.4.3/scripts/packages/VSCodeServer/src/display.jl:156
 [8] display(x::Any)
   @ Base.Multimedia ./multimedia.jl:328
 [9] top-level scope

Backends

This bug occurs on ( insert x below )

Backend	yes	no	untested
gr (default)		x
pyplot	x
plotlyjs			x
pgfplotsx			x
unicodeplots			x
inspectdr			x
gaston			x

Versions

The issue does not occur in Plots v1.20.1, but it does occur in the latest version Plots v1.23.2. I have not tested other versions.

[isentropic]

The MPL you are using is ancient "You are using Matplotlib 2.2.3"

[isentropic]

It is hard to tell why the commands did not update your mpl properly. Make sure that the standalone PyPlot.jl uses better than 3.4

[uchiiii]

@HumpyBlumpy
Could you share how you fixed this bug if you did already?