plotattr() hangs in Jupyter [BUG]

[jonasaugust]

Details

Running julia in Terminal on macOS Big Sur, I started a Jypyter server by entering using IJulia; notebook() and then started a fresh notebook tab by selecting New -> Julia 1.8.5 on the Jupyter tab newly created in my running Firefox window. To trigger the hang, in the code cell of that new notebook I entered using Plots; plotattr().

This hang does not occur for me from the Julia REPL run from the command line (Terminal).

I wasn't sure how to find out which backend is in use. It's whatever is default.

Installed packages:

(@v1.8) pkg> st
Status `~/.julia/environments/v1.8/Project.toml`
  [6e4b80f9] BenchmarkTools v1.3.2
  [717857b8] DSP v0.7.8
⌃ [7a1cc6ca] FFTW v1.5.0
  [5789e2e9] FileIO v1.16.0
⌃ [587475ba] Flux v0.13.12
⌃ [e9467ef8] GLMakie v0.8.2
  [cd3eb016] HTTP v1.7.4
  [7073ff75] IJulia v1.24.0
  [f332f351] ImageContrastAdjustment v0.3.10
⌅ [787d08f9] ImageMorphology v0.3.2
  [10e51d30] ImagePhaseCongruency v0.2.2
  [916415d5] Images v0.25.2
  [6fe1bfb0] OffsetArrays v1.12.9
  [91a5bcdd] Plots v1.38.8
  [27ebfcd6] Primes v0.5.3
  [5e47fb64] TestImages v1.7.1
  [d6d074c3] VideoIO v1.0.5
⌃ [e88e6eb3] Zygote v0.6.55

Backends

This bug occurs on ( insert x below )

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

Versions

Plots.jl version: 1.38.8
Backend version (]st -m <backend(s)>):
Output of versioninfo():

Julia Version 1.8.5
Commit 17cfb8e65ea (2023-01-08 06:45 UTC)
Platform Info:
  OS: macOS (x86_64-apple-darwin21.4.0)
  CPU: 8 × Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-13.0.1 (ORCJIT, haswell)
  Threads: 1 on 8 virtual cores

[BeastyBlacksmith]

"Fixed" by 2637052