Display for `pytype` in Pluto notebooks

[icweaver]

pytype seems to throw the following for me in a Pluto notebook:

using PythonCall

x_py = pylist([1, 2, 3])
# x_py = Python list: [1, 2, 3]

pytype(x_py)

Failed to show value:

MethodError: no method matching show(::IOContext{IOBuffer}, ::Nothing, ::PythonCall.Py)

Closest candidates are:

show(::IO, !Matched::AbstractString, ::Any) at ~/julia-1.7.1/share/julia/base/multimedia.jl:111
show(::IO, !Matched::MIME{Symbol("text/csv")}, ::PythonCall.Py) at ~/.julia/packages/PythonCall/59kNC/src/Py.jl:266
show(::IO, !Matched::MIME{Symbol("text/csv")}, ::Any) at ~/julia-1.7.1/share/julia/stdlib/v1.7/DelimitedFiles/src/DelimitedFiles.jl:829
...
    1. show_richest(::IOContext{IOBuffer}, ::Any)@PlutoRunner.jl:1019
    2. var"#sprint_withreturned#54"(::IOContext{Base.DevNull}, ::Int64, ::typeof(Main.PlutoRunner.sprint_withreturned), ::Function, ::PythonCall.Py)@PlutoRunner.jl:954
    3. format_output_default(::Any, ::Any)@PlutoRunner.jl:862
    4. var"#format_output#42"(::IOContext{Base.DevNull}, ::typeof(Main.PlutoRunner.format_output), ::Any)@PlutoRunner.jl:879
    5. formatted_result_of(::Base.UUID, ::Bool, ::Vector{String}, ::Nothing, ::Module)@PlutoRunner.jl:785
    6. top-level scope@none:1

while printing to plain text looks to work fine I think:

println(pytype(x_py)) # <class 'list'>

albeit the display is slightly different than just running it directly in the REPL:

julia> using PythonCall
    
julia> x_py = pylist([1, 2, 3])
Python list: [1, 2, 3]

julia> pytype(x_py)
Python type: <class 'list'>

Loving all the new updates by the way!

[cjdoris]

Thanks! It's a bug caused by the fact that x.__repr__() doesn't work when x is a type, you need to do type(x).__repr__(x) instead. Fixed on main branch.

[icweaver]

Wow, you are insanely fast

Thanks so much for the quick fix, it works beautifully!

[cjdoris]

Haha, you were just lucky to catch me while I was already looking at PythonCall!