Closed
Description
Affects: JuliaCall
Describe the bug
display is broken for parametric structs whose Base.show references the type parameter. See the following three examples:
In a ipython REPL (or jupyter notebook) with juliacall installed do the following:
from juliacall import Main as jl
code = """
struct Struct1{T}
x::T
end
function Base.show(io::IO, ::MIME"text/plain", t::Struct1{T}) where T
print(io, t.x)
end
struct Struct2{T<:Number}
x::T
end
function Base.show(io::IO, ::MIME"text/plain", t::Struct2)
print(io, t.x)
end
struct Struct3{T<:Number}
x::T
end
function Base.show(io::IO, ::MIME"text/plain", t::Struct3{T}) where T
print(io, t.x)
end
"""
jl.seval(code)
a = jl.Struct1(5)
display(a) # works fine and prints '5'
a = jl.Struct2(5)
display(a) # works fine and prints '5'
a = jl.Struct3(5)
display(a) # throws a JuliaError
---------------------------------------------------------------------------
JuliaError Traceback (most recent call last)
File ~/PhD/Work/PauliCraftPython/pyenv/lib/python3.8/site-packages/IPython/core/formatters.py:974, in MimeBundleFormatter.__call__(self, obj, include, exclude)
971 method = get_real_method(obj, self.print_method)
973 if method is not None:
--> 974 return method(include=include, exclude=exclude)
975 return None
976 else:
File ~/.julia/packages/PythonCall/bb3ax/src/JlWrap/any.jl:326, in _repr_mimebundle_(self, include, exclude)
324 return self._jl_callmethod($(pyjl_methodnum(pyjlany_help)), mime)
325 def _repr_mimebundle_(self, include=None, exclude=None):
--> 326 return self._jl_callmethod($(pyjl_methodnum(pyjlany_mimebundle)), include, exclude)
327 """, @__FILE__(), "exec"), jl.__dict__)
328 pycopy!(pyjlanytype, jl.AnyValue)
JuliaError: TypeError: in TestStruct, in T, expected T<:Number, got Type{Any}
Stacktrace:
[1] #s2#4
@ ~/.julia/packages/PythonCall/bb3ax/src/Utils/Utils.jl:106 [inlined]
[2] var"#s2#4"(T::Any, ::Any, ::Any)
@ PythonCall.Utils ./none:0
[3] (::Core.GeneratedFunctionStub)(::UInt64, ::LineNumberNode, ::Any, ::Vararg{Any})
@ Core ./boot.jl:602
[4] mimes_for(x::Any)
@ PythonCall.Utils ~/.julia/packages/PythonCall/bb3ax/src/Utils/Utils.jl:93
[5] pyjlany_mimebundle(self::TestStruct{Int64}, include::Py, exclude::Py)
@ PythonCall.JlWrap ~/.julia/packages/PythonCall/bb3ax/src/JlWrap/any.jl:173
[6] _pyjl_callmethod(f::Any, self_::Ptr{PythonCall.C.PyObject}, args_::Ptr{PythonCall.C.PyObject}, nargs::Int64)
@ PythonCall.JlWrap ~/.julia/packages/PythonCall/bb3ax/src/JlWrap/base.jl:72
[7] _pyjl_callmethod(o::Ptr{PythonCall.C.PyObject}, args::Ptr{PythonCall.C.PyObject})
@ PythonCall.JlWrap.Cjl ~/.julia/packages/PythonCall/bb3ax/src/JlWrap/C.jl:63
Julia: 5Your system
Please provide detailed information about your system:
- OS: Ubuntu 20.04
- julia 1.10.0
- python 3.8.10
- ipython 8.12.3
- juliacall 0.9.19
pip list
Package Version
------------------ -----------
asttokens 2.4.1
backcall 0.2.0
comm 0.2.2
debugpy 1.8.1
decorator 5.1.1
executing 2.0.1
importlib-metadata 7.1.0
ipykernel 6.29.4
ipython 8.12.3
jedi 0.19.1
juliacall 0.9.19
juliapkg 0.1.11
jupyter-client 8.6.1
jupyter-core 5.7.2
matplotlib-inline 0.1.6
nest-asyncio 1.6.0
numpy 1.24.4
packaging 24.0
parso 0.8.3
pexpect 4.9.0
pickleshare 0.7.5
pip 20.0.2
pkg-resources 0.0.0
platformdirs 4.2.0
prompt-toolkit 3.0.43
psutil 5.9.8
ptyprocess 0.7.0
pure-eval 0.2.2
pygments 2.17.2
python-dateutil 2.9.0.post0
pyzmq 25.1.2
semantic-version 2.10.0
setuptools 44.0.0
six 1.16.0
stack-data 0.6.3
tornado 6.4
traitlets 5.14.2
typing-extensions 4.10.0
wcwidth 0.2.13
zipp 3.18.1
juliapkg.status()
JuliaPkg Status
/home/yc20910/PhD/Work/PauliCraftPython/pyenv/julia_env/pyjuliapkg/juliapkg.json (empty project)
Julia 1.10.0 @ /home/yc20910/.julia/juliaup/julia-1.10.0+0.x64.linux.gnu/bin/julia