PyPlot not working in jupyter *lab*

[alexmorley]

PyPlot works fine in the repl, and in a normal jupyter notebook. But in jupyterlab:

using PyPlot

gives

┌ Info: Recompiling stale cache file /home/data/.julia/compiled/v1.0/PyPlot/oatAj.ji for PyPlot [d330b81b-6aea-500a-939a-2ce795aea3ee]
└ @ Base loading.jl:1190
┌ Warning: Package PyPlot does not have Sockets in its dependencies:
│ - If you have PyPlot checked out for development and have
│ added Sockets as a dependency but haven't updated your primary
│ environment's manifest file, try Pkg.resolve().
│ - Otherwise you may need to report an issue with PyPlot
└ Loading Sockets into PyPlot from project dependency, future warnings for PyPlot are suppressed.

InitError: type PyObject has no field version
during initialization of module PyPlot

Stacktrace:
[1] getproperty(::Any, ::Symbol) at ./sysimg.jl:18
[2] init() at /home/data/.julia/packages/PyPlot/cdCMF/src/init.jl:170
[3] _include_from_serialized(::String, ::Array{Any,1}) at ./loading.jl:633
[4] _require_from_serialized(::String) at ./loading.jl:684
[5] macro expansion at ./logging.jl:315 [inlined]
[6] _require(::Base.PkgId) at ./loading.jl:947
[7] require(::Base.PkgId) at ./loading.jl:858
[8] macro expansion at ./logging.jl:309 [inlined]
[9] require(::Module, ::Symbol) at ./loading.jl:840
[10] top-level scope at In[2]:1

I can't for the life of me work out why although this might be an IJulia problem. Steps tried so far:

using the miniconda build

ENV["PYTHON"]=""
import Pkg
Pkg.build("Conda")
Pkg.build("PyCall")
using PyPlot

using mpl 2

Conda.add("matplotlib<3")

Any ideas? Not urgent as for now I will just use normal notebooks. Also has anyone hit this?

Also LMK if this should be cross-posted at IJulia. The only reason I haven't so far is that this hasn't affected any other packages yet.

[alexmorley]

Wait actually this isn't working for normal notebooks either. Let me just blow away the whole julia install and re-try...

[alexmorley]

Works now. No idea what what wrong. ¯_(ツ)_/¯