Unlike in REPL, passing (e, catch_backtrace()) to the @error macro displays unreadable raw stacktrace instead of text representation

[BoZenKhaa]

Following code in REPL displays the error message passed through (e, catch_backtrace()) to the @error macro correctly:

julia> try
           a=b
       catch e
           @error "Oh no, exception!" (e, catch_backtrace())
       end
┌ Error: Oh no, exception!
│   (e, catch_backtrace()) =
│    UndefVarError: b not defined
│    Stacktrace:
│      [1] top-level scope
│        @ REPL[8]:2
│      [2] eval
│        @ ./boot.jl:373 [inlined]
│      [3] eval_user_input(ast::Any, backend::REPL.REPLBackend)
│        @ REPL ~/bin/julia-1.7.2/share/julia/stdlib/v1.7/REPL/src/REPL.jl:150
│      [4] repl_backend_loop(backend::REPL.REPLBackend)
│        @ REPL ~/bin/julia-1.7.2/share/julia/stdlib/v1.7/REPL/src/REPL.jl:246
│      [5] start_repl_backend(backend::REPL.REPLBackend, consumer::Any)
│        @ REPL ~/bin/julia-1.7.2/share/julia/stdlib/v1.7/REPL/src/REPL.jl:231
│      [6] run_repl(repl::REPL.AbstractREPL, consumer::Any; backend_on_current_task::Bool)
│        @ REPL ~/bin/julia-1.7.2/share/julia/stdlib/v1.7/REPL/src/REPL.jl:364
│      [7] run_repl(repl::REPL.AbstractREPL, consumer::Any)
│        @ REPL ~/bin/julia-1.7.2/share/julia/stdlib/v1.7/REPL/src/REPL.jl:351
│      [8] (::Base.var"#930#932"{Bool, Bool, Bool})(REPL::Module)
│        @ Base ./client.jl:394
│      [9] #invokelatest#2
│        @ ./essentials.jl:716 [inlined]
│     [10] invokelatest
│        @ ./essentials.jl:714 [inlined]
│     [11] run_main_repl(interactive::Bool, quiet::Bool, banner::Bool, history_file::Bool, color_set::Bool)
│        @ Base ./client.jl:379
│     [12] exec_options(opts::Base.JLOptions)
│        @ Base ./client.jl:309
│     [13] _start()
│        @ Base ./client.jl:495
└ @ Main REPL[8]:4

However, in Jupyter, the error message is displayed in the "raw" form:

Version:
Julia Version 1.7.2
Commit bf53498635 (2022-02-06 15:21 UTC)
Platform Info:
OS: Linux (x86_64-pc-linux-gnu)
CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
WORD_SIZE: 64
LIBM: libopenlibm
LLVM: libLLVM-12.0.1 (ORCJIT, skylake)
Environment:
JULIA_REVISE_POLL = 1

[fredrikekre]

IJulia.jl/src/init.jl

Line 112 in cc2a9bf

logger = Base.CoreLogging.SimpleLogger(Base.stderr)

must be ConsoleLogger to get that pretty printing.

[BoZenKhaa]

Thank you, it just works! Is it problematic to run ConsoleLogger as the global logger?

[fredrikekre]

No thats what the REPL does, I don't know why IJulia doesn't. Feel free to make a PR.

[BoZenKhaa]

I will do that, thank you very much! 🙏