signature helper does not work for variadic functions

[matu3ba]

I dont mind having no hints, but errors are very unpleasant:

Logs and instructions are also here https://github.com/hrsh7th/cmp-nvim-lsp-signature-help/issues/36.

# minimal.py, jedi-language-server version: 0.40.0
print("test"
#                     ^ cursor position
# adding , and subsequent space leads to below error:
# 1. 
# print("test",
# 2.
# print("test", 

Log

[START][2023-06-06 19:02:03] LSP logging initiated
[ERROR][2023-06-06 19:02:03] .../vim/lsp/rpc.lua:734    "rpc"   "/home/user/.local/share/nvim/mason/bin/jedi-language-server"   "stderr"    "ERROR:pygls.protocol:Unable to deserialize message\n  + Exception Group Traceback (most recent call last):\n  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/pygls/protocol.py\", line 401, in _deserialize_message\n  |     return self._converter.structure(data, request_type)\n  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 309, in structure\n  |     return self._structure_func.dispatch(cl)(obj, cl)\n  |   File \"<cattrs generated structure lsprotocol.types.TextDocumentSignatureHelpRequest>\", line 26, in structure_TextDocumentSignatureHelpRequest\n  |     if errors: raise __c_cve('While structuring ' + 'TextDocumentSignatureHelpRequest', errors, __cl)\n  | cattrs.errors.ClassValidationError: While structuring TextDocumentSignatureHelpRequest (1 sub-exception)\n  +-+---------------- 1 ----------------\n    | Exception Group Traceback (most recent call last):\n    |   File \"<cattrs generated structure lsprotocol.types.TextDocumentSignatureHelpRequest>\", line 10, in structure_TextDocumentSignatureHelpRequest\n    |     res['params'] = __c_structure_params(o['params'], __c_type_params)\n    |   File \"<cattrs generated structure lsprotocol.types.SignatureHelpParams>\", line 26, in structure_SignatureHelpParams\n    |     if errors: raise __c_cve('While structuring ' + 'SignatureHelpParams', errors, __cl)\n    | cattrs.errors.ClassValidationError: While structuring SignatureHelpParams (1 sub-exception)\n    | Structuring class TextDocumentSignatureHelpRequest @ attribute params\n    +-+---------------- 1 ----------------\n      | Exception Group Traceback (most recent call last):\n      |   File \"<cattrs generated structure lsprotocol.types.SignatureHelpParams>\", line 16, in structure_SignatureHelpParams\n      |     res['context'] = __c_structure_context(o['context'], __c_type_context)\n      |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 574, in _structure_optional\n      |     return self._structure_func.dispatch(other)(obj, other)\n      |   File \"<cattrs generated structure lsprotocol.types.SignatureHelpContext>\", line 26, in structure_SignatureHelpContext\n      |     if errors: raise __c_cve('While structuring ' + 'SignatureHelpContext', errors, __cl)\n      | cattrs.errors.ClassValidationError: While structuring SignatureHelpContext (1 sub-exception)\n      | Structuring class SignatureHelpParams @ attribute context\n      +-+---------------- 1 ----------------\n        | Exception Group Traceback (most recent call last):\n        |   File \"<cattrs generated structure lsprotocol.types.SignatureHelpContext>\", line 22, in structure_SignatureHelpContext\n        |     res['active_signature_help'] = __c_structure_active_signature_help(o['activeSignatureHelp'], __c_type_active_signature_help)\n        |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 574, in _structure_optional\n        |     return self._structure_func.dispatch(other)(obj, other)\n        |   File \"<cattrs generated structure lsprotocol.types.SignatureHelp>\", line 21, in structure_SignatureHelp\n        |     if errors: raise __c_cve('While structuring ' + 'SignatureHelp', errors, __cl)\n        | cattrs.errors.ClassValidationError: While structuring SignatureHelp (1 sub-exception)\n        | Structuring class SignatureHelpContext @ attribute active_signature_help\n        +-+---------------- 1 ----------------\n          | Exception Group Traceback (most recent call last):\n          |   File \"<cattrs generated structure lsprotocol.types.SignatureHelp>\", line 5, in structure_SignatureHelp\n          |     res['signatures'] = __c_structure_signatures(o['signatures'], __c_type_signatures)\n          |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 510, in _structure_list\n          |     raise IterableValidationError(\n          | cattrs.errors.IterableValidationError: While structuring typing.List[lsprotocol.types.SignatureInformation] (1 sub-exception)\n          | Structuring class SignatureHelp @ attribute signatures\n          +-+---------------- 1 ----------------\n            | Exception Group Traceback (most recent call last):\n            |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n            |     res.append(handler(e, elem_type))\n            |   File \"<cattrs generated structure lsprotocol.types.SignatureInformation>\", line 27, in structure_SignatureInformation\n            |     if errors: raise __c_cve('While structuring ' + 'SignatureInformation', errors, __cl)\n            | cattrs.errors.ClassValidationError: While structuring SignatureInformation (1 sub-exception)\n            | Structuring typing.List[lsprotocol.types.SignatureInformation] @ index 0\n            +-+---------------- 1 ----------------\n              | Exception Group Traceback (most recent call last):\n              |   File \"<cattrs generated structure lsprotocol.types.SignatureInformation>\", line 17, in structure_SignatureInformation\n              |     res['parameters'] = __c_structure_parameters(o['parameters'], __c_type_parameters)\n              |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 574, in _structure_optional\n              |     return self._structure_func.dispatch(other)(obj, other)\n              |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 510, in _structure_list\n              |     raise IterableValidationError(\n              | cattrs.errors.IterableValidationError: While structuring typing.List[lsprotocol.types.ParameterInformation] (5 sub-exceptions)\n              | Structuring class SignatureInformation @ attribute parameters\n              +-+---------------- 1 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 0\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n                +---------------- 2 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 1\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n                +---------------- 3 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 2\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n                +---------------- 4 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 3\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n                +---------------- 5 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 4\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n\n"
[ERROR][2023-06-06 19:02:03] .../vim/lsp/rpc.lua:734    "rpc"   "/home/user/.local/share/nvim/mason/bin/jedi-language-server"   "stderr"    "ERROR:pygls.protocol:Error receiving data\n  + Exception Group Traceback (most recent call last):\n  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/pygls/protocol.py\", line 401, in _deserialize_message\n  |     return self._converter.structure(data, request_type)\n  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 309, in structure\n  |     return self._structure_func.dispatch(cl)(obj, cl)\n  |   File \"<cattrs generated structure lsprotocol.types.TextDocumentSignatureHelpRequest>\", line 26, in structure_TextDocumentSignatureHelpRequest\n  |     if errors: raise __c_cve('While structuring ' + 'TextDocumentSignatureHelpRequest', errors, __cl)\n  | cattrs.errors.ClassValidationError: While structuring TextDocumentSignatureHelpRequest (1 sub-exception)\n  +-+---------------- 1 ----------------\n    | Exception Group Traceback (most recent call last):\n    |   File \"<cattrs generated structure lsprotocol.types.TextDocumentSignatureHelpRequest>\", line 10, in structure_TextDocumentSignatureHelpRequest\n    |     res['params'] = __c_structure_params(o['params'], __c_type_params)\n    |   File \"<cattrs generated structure lsprotocol.types.SignatureHelpParams>\", line 26, in structure_SignatureHelpParams\n    |     if errors: raise __c_cve('While structuring ' + 'SignatureHelpParams', errors, __cl)\n    | cattrs.errors.ClassValidationError: While structuring SignatureHelpParams (1 sub-exception)\n    | Structuring class TextDocumentSignatureHelpRequest @ attribute params\n    +-+---------------- 1 ----------------\n      | Exception Group Traceback (most recent call last):\n      |   File \"<cattrs generated structure lsprotocol.types.SignatureHelpParams>\", line 16, in structure_SignatureHelpParams\n      |     res['context'] = __c_structure_context(o['context'], __c_type_context)\n      |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 574, in _structure_optional\n      |     return self._structure_func.dispatch(other)(obj, other)\n      |   File \"<cattrs generated structure lsprotocol.types.SignatureHelpContext>\", line 26, in structure_SignatureHelpContext\n      |     if errors: raise __c_cve('While structuring ' + 'SignatureHelpContext', errors, __cl)\n      | cattrs.errors.ClassValidationError: While structuring SignatureHelpContext (1 sub-exception)\n      | Structuring class SignatureHelpParams @ attribute context\n      +-+---------------- 1 ----------------\n        | Exception Group Traceback (most recent call last):\n        |   File \"<cattrs generated structure lsprotocol.types.SignatureHelpContext>\", line 22, in structure_SignatureHelpContext\n        |     res['active_signature_help'] = __c_structure_active_signature_help(o['activeSignatureHelp'], __c_type_active_signature_help)\n        |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 574, in _structure_optional\n        |     return self._structure_func.dispatch(other)(obj, other)\n        |   File \"<cattrs generated structure lsprotocol.types.SignatureHelp>\", line 21, in structure_SignatureHelp\n        |     if errors: raise __c_cve('While structuring ' + 'SignatureHelp', errors, __cl)\n        | cattrs.errors.ClassValidationError: While structuring SignatureHelp (1 sub-exception)\n        | Structuring class SignatureHelpContext @ attribute active_signature_help\n        +-+---------------- 1 ----------------\n          | Exception Group Traceback (most recent call last):\n          |   File \"<cattrs generated structure lsprotocol.types.SignatureHelp>\", line 5, in structure_SignatureHelp\n          |     res['signatures'] = __c_structure_signatures(o['signatures'], __c_type_signatures)\n          |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 510, in _structure_list\n          |     raise IterableValidationError(\n          | cattrs.errors.IterableValidationError: While structuring typing.List[lsprotocol.types.SignatureInformation] (1 sub-exception)\n          | Structuring class SignatureHelp @ attribute signatures\n          +-+---------------- 1 ----------------\n            | Exception Group Traceback (most recent call last):\n            |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n            |     res.append(handler(e, elem_type))\n            |   File \"<cattrs generated structure lsprotocol.types.SignatureInformation>\", line 27, in structure_SignatureInformation\n            |     if errors: raise __c_cve('While structuring ' + 'SignatureInformation', errors, __cl)\n            | cattrs.errors.ClassValidationError: While structuring SignatureInformation (1 sub-exception)\n            | Structuring typing.List[lsprotocol.types.SignatureInformation] @ index 0\n            +-+---------------- 1 ----------------\n              | Exception Group Traceback (most recent call last):\n              |   File \"<cattrs generated structure lsprotocol.types.SignatureInformation>\", line 17, in structure_SignatureInformation\n              |     res['parameters'] = __c_structure_parameters(o['parameters'], __c_type_parameters)\n              |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 574, in _structure_optional\n              |     return self._structure_func.dispatch(other)(obj, other)\n              |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 510, in _structure_list\n              |     raise IterableValidationError(\n              | cattrs.errors.IterableValidationError: While structuring typing.List[lsprotocol.types.ParameterInformation] (5 sub-exceptions)\n              | Structuring class SignatureInformation @ attribute parameters\n              +-+---------------- 1 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 0\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n                +---------------- 2 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 1\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n                +---------------- 3 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 2\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n                +---------------- 4 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 3\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n                +---------------- 5 ----------------\n                | Exception Group Traceback (most recent call last):\n                |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 502, in _structure_list\n                |     res.append(handler(e, elem_type))\n                |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 15, in structure_ParameterInformation\n                |     if errors: raise __c_cve('While structuring ' + 'ParameterInformation', errors, __cl)\n                | cattrs.errors.ClassValidationError: While structuring ParameterInformation (1 sub-exception)\n                | Structuring typing.List[lsprotocol.types.ParameterInformation] @ index 4\n                +-+---------------- 1 ----------------\n                  | Traceback (most recent call last):\n                  |   File \"<cattrs generated structure lsprotocol.types.ParameterInformation>\", line 5, in structure_ParameterInformation\n                  |     res['label'] = __c_structure_label(o['label'], __c_type_label)\n                  |   File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/cattrs/converters.py\", line 377, in _structure_error\n                  |     raise StructureHandlerNotFoundError(msg, type_=cl)\n                  | cattrs.errors.StructureHandlerNotFoundError: Unsupported type: typing.Union[str, typing.Tuple[int, int]]. Register a structure hook for it.\n                  | Structuring class ParameterInformation @ attribute label\n                  +------------------------------------\n\nThe above exception was the direct cause of the following exception:\n\nTraceback (most recent call last):\n  File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/pygls/protocol.py\", line 507, in data_received\n    self._data_received(data)\n  File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/pygls/protocol.py\", line 539, in _data_received\n    json.loads(body.decode(self.CHARSET),\n  File \"/usr/lib/python3.8/json/__init__.py\", line 370, in loads\n    return cls(**kw).decode(s)\n  File \"/usr/lib/python3.8/json/decoder.py\", line 337, in decode\n    obj, end = self.raw_decode(s, idx=_w(s, 0).end())\n  File \"/usr/lib/python3.8/json/decoder.py\", line 353, in raw_decode\n    obj, end = self.scan_once(s, idx)\n  File \"/home/user/.local/share/nvim/mason/packages/jedi-language-server/venv/lib/python3.8/site-packages/pygls/protocol.py\", line 415, in _deserialize_message\n    raise JsonRpcInvalidParams() from exc\npygls.exceptions.JsonRpcInvalidParams: Invalid Params\n"

Let me know, what further logs or instructions you need to reproduce the problem.

[dimbleby]

You'll need to take it to https://github.com/microsoft/lsprotocol, that's what's reponsible for (de)serialization

[r3m0t]

I think you need to pip install -U lsprotocol

[matu3ba]

pip3 install -U --user lsprotocol
Requirement already satisfied: lsprotocol in /home/user/.local/lib/python3.8/site-packages (2023.0.0a1)
Requirement already satisfied: attrs in /home/user/.local/lib/python3.8/site-packages (from lsprotocol) (23.1.0)
Requirement already satisfied: cattrs in /home/user/.local/lib/python3.8/site-packages (from lsprotocol) (23.1.2)
Requirement already satisfied: exceptiongroup in /home/user/.local/lib/python3.8/site-packages (from cattrs->lsprotocol
) (1.1.1)
Requirement already satisfied: typing_extensions>=4.1.0 in /home/user/.local/lib/python3.8/site-packages (from cattrs->
lsprotocol) (4.6.3)

I think its a general problem with generics, as they are hard to resolve. For example, in C++ clangd is also unable to show the context in (simple) overloaded functions and gives up after the first argument.

However, clangd does not show annoying errors.

[dimbleby]

This has nothing to do with generics and even less to do with clangd. It is a deserialisation problem and you should report it to https://github.com/microsoft/lsprotocol

[matu3ba]

Mhm, I can not reproduce with pipx installed version:

package jedi-language-server 0.40.0, installed using Python 3.11.3
    - jedi-language-server

Closing as known workaround and unclear cause.