pywrap: AttributeError: 'NoneType' object has no attribute 'name'

[l29ah]

I'm packaging CadQuery for Gentoo, so i'm building OCP from sources. Running pywrap --verbose --njobs 9 --libclang /usr/lib/llvm/17/lib64/libclang.so --include /usr/lib/clang/17/include --include /usr/include/vtk-9.2 all ocp.toml on the 7.7.2.0 tag results in

  0% 0/314 [00:00<?, ?it/s][D 231211 14:02:49 module:41] Processing headers
[D 231211 14:02:49 module:44] ./opencascade/Standard_UUID.hxx
[D 231211 14:02:49 module:41] Processing headers
[D 231211 14:02:49 module:44] ./opencascade/math_GaussSetIntegration.hxx
[D 231211 14:02:49 module:41] Processing headers
[D 231211 14:02:49 module:44] ./opencascade/gp_Circ2d.hxx
[D 231211 14:02:49 module:41] Processing headers
[D 231211 14:02:49 module:44] ./opencascade/Quantity_NameOfColor.hxx
[D 231211 14:02:49 module:41] Processing headers
[D 231211 14:02:49 module:44] ./opencascade/TColgp_HSequenceOfXY.hxx
[D 231211 14:02:49 module:41] Processing headers
[D 231211 14:02:49 module:44] ./opencascade/OSD_ErrorList.hxx
[D 231211 14:02:49 module:41] Processing headers
[D 231211 14:02:49 module:44] ./opencascade/NCollection_BaseAllocator.hxx
[D 231211 14:02:49 module:41] Processing headers
[D 231211 14:02:49 module:44] ./opencascade/BVH_Sorter.hxx
[D 231211 14:02:49 module:41] Processing headers
[D 231211 14:02:49 module:44] ./opencascade/Storage_HArrayOfCallBack.hxx
[D 231211 14:02:50 module:41] Processing headers
[D 231211 14:02:50 module:44] ./opencascade/FSD_Base64.hxx
loky.process_executor._RemoteTraceback: 
"""
Traceback (most recent call last):
  File "/usr/lib/python3.11/site-packages/loky/process_executor.py", line 463, in _process_worker
    r = call_item()
        ^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/loky/process_executor.py", line 291, in __call__
    return self.fn(*self.args, **self.kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/joblib/parallel.py", line 589, in __call__
    return [func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/joblib/parallel.py", line 589, in <listcomp>
    return [func(*args, **kwargs)
            ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/bindgen/__init__.py", line 246, in _process_module
    return ModuleInfo(name,path,files,module_names,settings)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/bindgen/module.py", line 45, in __init__
    self.headers.append(process_header(p,prefix,settings,name))
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/bindgen/header.py", line 752, in process_header
    hi.parse(path,input_folder,settings,module_name)
  File "/usr/lib/python3.11/site-packages/bindgen/header.py", line 707, in parse
    self.dependencies = [el.location.file.name for el in tr_unit.get_includes()]
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/bindgen/header.py", line 707, in <listcomp>
    self.dependencies = [el.location.file.name for el in tr_unit.get_includes()]
                         ^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'name'
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/lib/python-exec/python3.11/pywrap", line 33, in <module>
    sys.exit(load_entry_point('pywrap==9999', 'console_scripts', 'pywrap')())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/click/core.py", line 1688, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/click/decorators.py", line 33, in new_func
    return f(get_current_context(), *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/bindgen/__main__.py", line 101, in all
    ctx.invoke(parse, configuration=configuration, output=tmp_parsed, platform=platform)
  File "/usr/lib/python3.11/site-packages/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/click/decorators.py", line 45, in new_func
    return f(get_current_context().obj, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/bindgen/__main__.py", line 40, in parse
    result = parse_modules(obj.verbose,obj.njobs,settings,module_mapping,module_settings,platform)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/bindgen/__init__.py", line 248, in parse_modules
    modules = Parallel(prefer='processes',n_jobs=n_jobs)\
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/joblib/parallel.py", line 1952, in __call__
    return output if self.return_generator else list(output)
                                                ^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/joblib/parallel.py", line 1595, in _get_outputs
    yield from self._retrieve()
  File "/usr/lib/python3.11/site-packages/joblib/parallel.py", line 1699, in _retrieve
    self._raise_error_fast()
  File "/usr/lib/python3.11/site-packages/joblib/parallel.py", line 1734, in _raise_error_fast
    error_job.get_result(self.timeout)
  File "/usr/lib/python3.11/site-packages/joblib/parallel.py", line 736, in get_result
    return self._return_or_raise()
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/site-packages/joblib/parallel.py", line 754, in _return_or_raise
    raise self._result
AttributeError: 'NoneType' object has no attribute 'name'

What's wrong with it?

[adam-urbanczyk]

IDK, sounds like some include has no file name associated with it according to libclang.

If you want to build from sources, please use the released sources and not generate them yourself.

[l29ah]

If you want to build from sources, please use the released sources and not generate them yourself.

That wouldn't be "sources" then.

[adam-urbanczyk]

Those are the official released sources. There is nothing you will gain by running the generator unless you want modify the ocp.toml configuration file.

[l29ah]

Could you clarify how to use these? I couldn't find it in the repo documentation, and conda is not a great option for packaging in Gentoo, as it's not packaged itself, and would likely present issues with dependency bundling, among other things.

[adam-urbanczyk]

Just download the *src files from e.g. here: https://github.com/CadQuery/OCP/releases/download/7.7.2.0/OCP_src_stubs_ubuntu-20.04.zip . You'll likely hit this issue though: conda-forge/occt-feedstock#108 , so I'd wait for #148 being merged and released as 7.7.2.1.

The zip comes with CMakeLists.txt so just use cmake to compile and that is it.