Debug github action.

.github/workflows/pypi-publish.yml

@@ -5,7 +5,7 @@ name: Upload Python Package
 
 on:
   push:
-    tags: ["*.dev[0-9]+"]
+    tags: ["*"]
 
 jobs:
   deploy:
@@ -35,7 +35,7 @@ jobs:
         TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
       run: |
         cd stubs/setup
-        cp ../${{ steps.version.outputs.replaced }}/mobase.pyi mobase-stubs/__init__.pyi
+        cp -r ../${{ steps.version.outputs.replaced }}/mobase-stubs/* mobase-stubs/
         sed -i 's/__version__ = ".*"/__version__ = "${{ github.ref_name }}"/' mobase-stubs/__init__.pyi
         python setup.py sdist bdist_wheel
         twine upload dist/*

.gitignore

@@ -2,9 +2,10 @@
 .mypy_cache
 __pycache__
 .vscode
+**/*.egg-info
 
 # The 'bin/' directory:
 bin
 docs/build
 docs/mobase.py
-docs/source/api
+docs/source/api

README.md

@@ -19,20 +19,9 @@ You can install stubs for a specific version of MO2:
 pip install mobase-stubs==2.3.2.*
 ```
 
-If you want development stubs, you can install them this way:
-```bash
-# Clone this repository:
-git clone https://github.com/ModOrganizer2/pystubs-generation.git
-
-# Install the stubs:
-cd pystubs-generation/stubs/setup
-pip install .
-```
-
 Some words of warning:
+
 - The stubs are as correct as possible, but some errors are expected.
-- If you see a `InterfaceNotImplemented` class anywhere in the stubs, it means that
-  a proper interface is currently not available.
 - Some classes are said (in the stubs) to inherit `QWidget` or `QObject`. This is true
   on the C++ side but NOT on the python side. The inheritance is only added to help with
   auto-completion since these classes also override `__getattr__` to dispatch to the
@@ -44,35 +33,39 @@ Some words of warning:
 
 The stubs are generated using python by parsing the `mobase` module.
 You need the version of python that matches your current MO2 installation: e.g., if you
-have a `python38.dll` in your MO2 installation path, then you need **Python 3.8**.
+have a `python310.dll` in your MO2 installation path, then you need **Python 3.10**.
 
 To generate the stubs, you can run:
 
-```
-# Change the output folder to whatever you want:
-python main.py -c configs\config-2.4.yml ${MO2_INSTALL_PATH}
+```bash
+# install the package (-e if you want editable mode)
+pip install [-e] .
+
+# change the output folder to whatever you want
+mo2-stubs-generator -c configs/config-2.4.yml -o mobase-stubs ${MO2_INSTALL_PATH}
 ```
 
-Where `${MO2_INSTALL_PATH}` is the path to your MO2 installation (the one containing `ModOrganizer.exe`).
+Where `${MO2_INSTALL_PATH}` is the path to your MO2 installation (the one
+containing `ModOrganizer.exe`).
 
-The stubs are generated under `stubs/setup/mobase-stubs/__init__.pyi`, you
-can change the output file by using the `-o` option
-The latest stubs are kept under `stubs/setup/mobase-stubs/__init__.pyi`,
-and when a new version is released, the stubs are backed-up under
-`stubs/x.y.z/mobase.pyi`.
+The stubs are generated under `stubs/setup/mobase-stubs` by default, you
+can change the output file by using the `-o` option.
+The stubs under `stubs/setup/mobase-stubs` should not be committed as these are
+generated from the version stubs under `stubs/${VERSION}/mobase-stubs`.
 
-A few options are available for `main.py`:
+A few options are available for `mo2-stubs-generator`:
 
-```
-usage: Stubs generator for the MO2 python interface [-h] [-o OUTPUT] [-v] [-c CONFIG] INSTALL_DIR
+```bash
+$ mo2-stubs-generator --help
+usage: stubs generator for the MO2 python interface [-h] [-o OUTPUT] [-v] [-c CONFIG] INSTALL_DIR
 
 positional arguments:
   INSTALL_DIR           installation directory of Mod Organizer 2
 
-optional arguments:
+options:
   -h, --help            show this help message and exit
   -o OUTPUT, --output OUTPUT
-                        output file (default stubs/setup/mobase-stubs/__init__.pyi)
+                        output folder (default stubs/setup/mobase-stubs)
   -v, --verbose         verbose mode (all logs go to stderr)
   -c CONFIG, --config CONFIG
                         configuration file
@@ -81,19 +74,7 @@ optional arguments:
 The stubs generator will try hard to find a valid stubs for all classes
 and methods of `mobase`.
 A lot of information is available through the `-v` options. Without it,
-only conversions or fixes
-considered "strange" will be shown.
-For instance, here is the output with the current `config-2.4.yml` file:
-
-```
-WARNING: Replacing IOrganizer::FileInfo with FileInfo.
-WARNING: Replacing IOrganizer::FileInfo with FileInfo.
-WARNING: Replacing IPluginInstaller::EInstallResult with InstallResult.
-WARNING: Replacing IPluginInstaller::EInstallResult with InstallResult.
-```
-
-As you can see, only a few types were manually fixed (specified in
-`config-2.4.yml`).
+only conversions or fixes considered "strange" will be shown.
 
 ## Configuration file
 
@@ -102,20 +83,21 @@ deduced by `main` (or are too complex to deduce), and the documentation for ever
 
 ## Uploading the stubs to pypi
 
-The upload of the stubs to https://pypi.org/project/mobase-stubs/ should be
-done automatically when a new Github release is made.
+The upload of the stubs to [https://pypi.org/project/mobase-stubs/](https://pypi.org/project/mobase-stubs/)
+should be done automatically when a new Github tag is pushed.
 
-## Extras — Starts a python interpreter with `mobase`
+## Extras — Using `mobase` in a Python interpreter
 
-It is possible to start a (i)python interpret with `mobase` imported by running:
+It is possible to start a (i)python interpreter with `mobase` imported by running
 
-```
-python -im generator.loader ${MO2_INSTALL_PATH}
+```bash
+python -i -m mo2.stubs.generator.loader ${MO2_INSTALL_PATH}
 ```
 
-This has no real usage except for MO2 developers since most classes from the `mobase` module cannot be instantiated.
+**Note:** Most classes in `mobase` cannot be instantiated, so this is mostly intended
+for MO2 developers.
 
-# License
+## License
 
 The MIT License (MIT)
 

configs/config-2.5.yml

@@ -1,24 +1,14 @@
 ---
-version: 1
+# version of the configuration
+version: 2
 
-# This is the list of type to replace:
-replacements:
-  Organizer::FileInfo: FileInfo
-  IOrganizer::FileInfo: FileInfo
-  IPluginInstaller::EInstallResult: InstallResult
-  GuessedValue< QString>: GuessedString
-
-# List of names to ignores:
-ignores:
-  - toPyQt
+# version of the stubs - this is overridden when publishing
+__version__: "2.5.0"
 
 # This is the root of the mobase module and will contain everything
 # related to functions / classes, including their documentation.
 mobase:
 
-  # Version of the stubs.
-  __version__: 2.5.0.dev2
-
   getFileVersion:
     __doc__: Retrieve the file version of the given executable.
     args:
@@ -329,7 +319,7 @@ mobase:
         __doc__: |
           The parent tree containing this entry, or a `None` if this entry is the root
           or the parent tree is unreachable.
-        type: Optional["IFileTree"]
+        type: Optional[IFileTree]
 
     path:
       __doc__: |
@@ -673,7 +663,7 @@ mobase:
         __doc__: |
           The entry at the given location, or `None` if the entry was not found or
           was not of the correct type.
-        type: Optional[Union["IFileTree", "FileTreeEntry"]]
+        type: Optional[Union[IFileTree, FileTreeEntry]]
 
     insert:
       __doc__: |
@@ -1208,7 +1198,7 @@ mobase:
   IModRepositoryBridge:
 
     __bases__:
-      - PyQt5.QtCore.QObject
+      - PyQt6.QtCore.QObject
 
     signals[]:
       descriptionAvailable:
@@ -1372,7 +1362,7 @@ mobase:
             type: MoVariant
             desc: The data that was included in the request.
           error:
-            type: PyQt5.QtNetwork.QNetworkReply.NetworkError
+            type: PyQt6.QtNetwork.QNetworkReply.NetworkError
             desc: The actual error.
           message:
             type: str
@@ -2034,6 +2024,9 @@ mobase:
         The name of the launcher executable to run (relative to the game folder), or an
         empty string if there is no launcher.
 
+    getSupportURL:
+      returns: An URL for the support page of this game.
+
     iniFiles:
       returns: |
         The list of INI files this game uses. The first file in the list should be the
@@ -2223,13 +2216,6 @@ mobase:
       args:
         parent: The parent widget.
 
-  IPluginInstallerCustom:
-    __doc__: |
-      Custom installer for mods. Custom installers receive the archive name and have to go
-      from there. They have to be able to extract the archive themselves.
-
-      Example of such installers are the external NCC installer or the OMOD installer.
-
     _manager:
       abstract: false
       returns: The installation manager.
@@ -2238,6 +2224,13 @@ mobase:
       abstract: false
       returns: The parent widget.
 
+  IPluginInstallerCustom:
+    __doc__: |
+      Custom installer for mods. Custom installers receive the archive name and have to go
+      from there. They have to be able to extract the archive themselves.
+
+      Example of such installers are the external NCC installer or the OMOD installer.
+
     install:
       __doc__: |
         Install the given archive.
@@ -2278,14 +2271,6 @@ mobase:
       representing the archive and can modify what to install and where by editing this structure.
       Actually extracting the archive is handled by the manager.
 
-    _manager:
-      abstract: false
-      returns: The installation manager.
-
-    _parentWidget:
-      abstract: false
-      returns: The parent widget.
-
     install:
       __doc__: |
         Install a mod from an archive filetree.
@@ -2920,7 +2905,7 @@ mobase:
         type: int
         desc:
       fileTime:
-        type: PyQt5.QtCore.QDateTime
+        type: PyQt6.QtCore.QDateTime
         desc:
       gameName:
         type: str
@@ -3013,7 +2998,7 @@ mobase:
         parent: The parent widget.
       returns:
         __doc__: A SaveGameInfoWidget to display information about save game.
-        type: Optional["ISaveGameInfoWidget"]
+        type: Optional[ISaveGameInfoWidget]
 
   ScriptExtender:
     __doc__:
@@ -3152,3 +3137,9 @@ mobase:
 
     scheme:
       returns: The version scheme in effect for this VersionInfo.
+
+mobase.widgets:
+
+  TaskDialog: {}
+
+  TaskDialogButton: {}

generator/__init__.py

@@ -1,8 +0,0 @@
-# -*- encoding: utf-8 -*-
-
-import logging
-import sys
-
-logging.basicConfig(stream=sys.stderr, format="%(levelname)s: %(message)s")
-logger = logging.getLogger(__name__)
-logger.setLevel(logging.WARNING)

generator/loader.py

@@ -1,95 +0,0 @@
-# -*- encoding: utf-8 -*-
-
-import importlib.machinery
-import importlib.util
-import os
-import sys
-from pathlib import Path
-
-
-def load_module(name: str, path: Path):
-    # Create the loader:
-    loader = importlib.machinery.ExtensionFileLoader(  # type: ignore
-        name, path.as_posix()
-    )
-
-    # Extract the spec:
-    spec = importlib.util.spec_from_loader(name, loader)
-    assert spec is not None
-
-    # Create the module and execute it?
-    module = importlib.util.module_from_spec(spec)
-    if module is None:
-        raise ImportError(f"Failed to import module {name} from {path}.")
-
-    loader.exec_module(module)
-
-    return module
-
-
-def load_mobase(path: Path, moprivate: bool = False):
-    """
-    Load the mobase from the given MO2 installation path and
-    returns it.
-
-    Args:
-        path: Path to the MO2 installation (folder containing the ModOrganizer.exe).
-        moprivate: If True, the moprivate module will also be loaded and returned
-            alongside mobase.
-
-    Returns: The mobase module.
-    """
-
-    # We need absolute path for loading DLL and modules:
-    path = path.resolve()
-
-    # Adding to PATH environment variable for python < 3.8 and
-    # via os.add_dll_directory (python >= 3.8).
-    # See: https://stackoverflow.com/a/58632354/2666289
-    if sys.version_info < (3, 8):
-        os.environ["PATH"] = os.pathsep.join(
-            [str(path), str(path.joinpath("dlls")), os.environ.get("PATH", "")]
-        )
-    else:
-        os.add_dll_directory(str(path))  # type: ignore[attr-defined]
-        os.add_dll_directory(str(path.joinpath("dlls")))  # type: ignore[attr-defined]
-
-    # We need to add plugins/data to sys.path, mainly for PyQt6
-    sys.path.insert(1, path.joinpath("plugins", "data").as_posix())
-
-    mobase = load_module("mobase", path.joinpath("plugins", "data", "pythonrunner.dll"))
-
-    if not moprivate:
-        return mobase
-
-    moprivate = load_module(
-        "moprivate", path.joinpath("plugins", "data", "pythonrunner.dll")
-    )
-
-    return mobase, moprivate
-
-
-if __name__ == "__main__":
-
-    import argparse
-
-    parser = argparse.ArgumentParser(
-        "Load mobase python module from MO2 installation directory"
-    )
-    parser.add_argument(
-        "install_dir",
-        metavar="INSTALL_DIR",
-        type=Path,
-        default=None,
-        help="installation directory of Mod Organizer 2",
-    )
-    parser.add_argument(
-        "-p", "--private", action="store_true", help="also load the moprivate module"
-    )
-
-    args = parser.parse_args()
-
-    if args.private:
-        mobase, moprivate = load_mobase(args.install_dir, moprivate=True)
-    else:
-        mobase = load_mobase(args.install_dir)

generator/register.py

@@ -1,109 +0,0 @@
-# -*- encoding: utf-8 -*-
-
-from collections import OrderedDict
-from typing import Dict, List, Optional, Union
-
-from . import logger
-from .mtypes import Class, CType, Function, Type
-
-
-class MobaseRegister:
-    """
-    Class that register classes.
-    """
-
-    objects: Dict[str, Union[Class, List[Function]]]
-
-    def __init__(self):
-        self.raw_objects: Dict[str, Union[type]] = OrderedDict()
-        self.objects = {}
-
-        self._cpptypes = {}
-        self.cpp2py = {}
-
-    def add_object(self, name, object):
-        self.raw_objects[name] = object
-
-    def make_object(
-        self, name: str, e: Optional[type] = None
-    ) -> Union["Class", List["Function"]]:
-        """
-        Construct a Function, Class or Enum for the given object.
-
-        Args:
-            name: The name of the object to inspect.
-            e: The object to inspect, or None to fetch it from the underlying list.
-
-        Returns:
-            A Class object for the given type, or a list of function overloads.
-        """
-        from .parser import is_enum, make_class, make_enum, make_functions
-
-        if e is None:
-            e = self.raw_objects[name]
-
-        if name not in self.raw_objects:
-            self.raw_objects[name] = e
-
-        if name not in self.objects:
-            if is_enum(e):
-                self.objects[name] = make_enum(name, e)
-            elif isinstance(e, type):
-                self.objects[name] = make_class(name, e, self)
-            elif callable(e):
-                self.objects[name] = make_functions(name, e)
-
-        return self.objects[name]
-
-    def get_object(self, name: str):
-        """
-        Retrieve the object if the given name. Fails if no object with this
-        name exists (if `make_object(name, ...)` has never been called).
-
-        Args:
-            name: Name of the object to retrieve.
-
-        Returns:
-            The object with the given name.
-        """
-        return self.objects[name]
-
-    def register_type(self, ptype: "Type", ctype: "CType"):
-        """Register an equivalence between a python name and a C++ name.
-
-        Args:
-            python_name: Name of the Python class.
-            cpp_name: Name of the C++ class.
-        """
-        # Register the const equivalent for smart pointers:
-        cname = ctype.name
-        if ctype.is_smart_pointer():
-            if cname.find(" const >") != -1:
-                c2name = cname.replace(" const >", ">")
-                if c2name in self._cpptypes:
-                    ptype = self.cpp2py[c2name]
-            # Not the const, replace the const one:
-            else:
-                c2name = cname.replace(">", " const >")
-                if c2name in self._cpptypes and self.cpp2py[c2name].is_object():
-                    self._cpptypes[c2name] = ctype
-                    self.cpp2py[c2name] = ptype
-                    logger.warning(
-                        "Replace registration {} [c++] with {} [python] using {}"
-                        " information.".format(c2name, ptype.name, cname)  # noqa: E501
-                    )
-
-        if cname not in MOBASE_REGISTER.cpp2py:
-            self._cpptypes[cname] = ctype
-            self.cpp2py[cname] = ptype
-            logger.info("Registered {} [c++] as {} [python].".format(cname, ptype.name))
-
-    @property
-    def py2cpp(self):
-        result = {v.name: [] for v in self.cpp2py.values()}
-        for k in self.cpp2py:
-            result[self.cpp2py[k].name].append(self._cpptypes[k])
-        return result
-
-
-MOBASE_REGISTER = MobaseRegister()

main.py

@@ -1,169 +0,0 @@
-# -*- encoding: utf-8 -*-
-
-import argparse
-import logging
-from pathlib import Path
-
-import black
-
-from generator import logger
-from generator.loader import load_mobase
-from generator.mtypes import Class, Function, Type
-from generator.parser import is_enum
-from generator.register import MOBASE_REGISTER
-from generator.utils import Settings, clean_class
-from generator.writer import Writer
-
-parser = argparse.ArgumentParser("Stubs generator for the MO2 python interface")
-parser.add_argument(
-    "install_dir",
-    metavar="INSTALL_DIR",
-    type=Path,
-    default=None,
-    help="installation directory of Mod Organizer 2",
-)
-parser.add_argument(
-    "-o",
-    "--output",
-    type=Path,
-    default="stubs/setup/mobase-stubs/__init__.pyi",
-    help="output file (default stubs/setup/mobase-stubs/__init__.pyi)",
-)
-parser.add_argument(
-    "-v", "--verbose", action="store_true", help="verbose mode (all logs go to stderr)"
-)
-parser.add_argument(
-    "-c",
-    "--config",
-    type=argparse.FileType("r"),
-    default=None,
-    help="configuration file",
-)
-
-args = parser.parse_args()
-
-if args.verbose:
-    logger.setLevel(logging.INFO)
-
-# Load settings from the configuration:
-settings: Settings = Settings(register=MOBASE_REGISTER)
-if args.config is not None:
-    settings = Settings(MOBASE_REGISTER, args.config)
-
-# Parse mobase:
-
-# Load mobase (cannot simply do "import mobase"):
-mobase = load_mobase(Path(args.install_dir))
-
-# List of objects:
-objects = []
-
-for name in dir(mobase):
-    if name.startswith("__"):
-        continue
-
-    if name in settings.ignore_names:
-        continue
-
-    # We do not want the real MoVariant.
-    if name == "MoVariant":
-        continue
-
-    # For now, ignore this since it is a submodule and we
-    # not handle them.
-    if name == "widgets":
-        continue
-
-    objects.append((name, getattr(mobase, name)))
-
-# Enum first, and then alphabetical. Might cause issue with base classes, so
-# maybe create a kind of dependency...
-# For argument or return types, this should not be an issue since we quote
-# everything from mobase.
-objects = sorted(
-    objects, key=lambda e: (isinstance(e[1], type), not is_enum(e[1]), e[0])
-)
-
-for n, o in objects:
-    MOBASE_REGISTER.add_object(n, o)
-
-# Process everything:
-for n, o in objects:
-
-    # Create the corresponding object:
-    c = MOBASE_REGISTER.make_object(n, o)
-
-    if isinstance(c, Class):
-
-        # Clean the class (e.g., remove duplicates methods due to wrappers):
-        clean_class(c, settings)
-
-        # Path the class using the configuration:
-        settings.patch_class(c)
-
-    elif isinstance(c, list) and isinstance(c[0], Function):
-        settings.patch_functions(c)
-
-    else:
-        logger.critical(
-            "Cannot generated stubs for {}, unsupported object type.".format(n)
-        )
-
-# Write everything:
-with open(args.output, "w") as output:
-
-    writer = Writer(output, settings)
-    writer.print_version(settings.mobase["__version__"])  # type: ignore
-    writer.print_imports(
-        [
-            "abc",
-            ("enum", ["Enum"]),
-            (
-                "typing",
-                [
-                    "Dict",
-                    "Iterator",
-                    "List",
-                    "Tuple",
-                    "Union",
-                    "Any",
-                    "Optional",
-                    "Callable",
-                    "overload",
-                    "TypeVar",
-                    "Type",
-                ],
-            ),
-            "PyQt6.QtCore",
-            "PyQt6.QtGui",
-            "PyQt6.QtWidgets",
-        ]
-    )
-
-    # Needs to define the MVariant and GameFeatureType type:
-    writer._print("MoVariant = {}".format(Type.MO_VARIANT))
-    writer._print('GameFeatureType = TypeVar("GameFeatureType")')
-    writer._print()
-
-    # This is a class to represent interface not implemented:
-    writer.print_class(Class("InterfaceNotImplemented", [], []))
-    writer._print()
-
-    for n, o in objects:
-
-        # Get the corresponding object:
-        c = MOBASE_REGISTER.get_object(n)
-
-        if isinstance(c, Class):
-            writer.print_class(c)
-
-        elif isinstance(c, list) and isinstance(c[0], Function):
-            for fn in c:
-                writer.print_function(fn)
-
-black.format_file_in_place(
-    args.output,
-    fast=False,
-    mode=black.Mode(is_pyi=args.output.name.endswith("pyi")),
-    write_back=black.WriteBack.YES,
-)

setup.cfg

@@ -34,7 +34,7 @@ deps =
     types-PyYAML
     isort
 commands =
-    black generator main.py --check --diff
-    flake8 generator main.py
-    mypy generator main.py
-    isort -c generator main.py
+    black src --check --diff
+    flake8 src
+    mypy src
+    isort -c src

setup.py

@@ -0,0 +1,35 @@
+# -*- encoding: utf-8 -*-
+
+from setuptools import find_namespace_packages, setup
+
+install_requires = ["black", "isort"]
+
+dev_requires = [
+    "black",
+    "flake8-black",
+    "flake8",
+    "types-chardet",
+]
+
+setup(
+    name="mo2-stubs-generator",
+    version="1.0.0",
+    package_dir={"": "src"},
+    packages=find_namespace_packages(where="src", include=["mo2.*"]),
+    author="Holt59",
+    author_email="capelle.mikael@gmail",
+    description="Python stubs generator for mobase (MO2 Python API).",
+    long_description=open("README.md").read(),
+    url="https://github.com/ModOrganizer2/pystubs-generation",
+    classifiers=[
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.10",
+    ],
+    license="MIT",
+    install_requires=install_requires,
+    extras_require={"dev": dev_requires},
+    entry_points={
+        "console_scripts": ["mo2-stubs-generator=mo2.stubs.generator.__main__:main"],
+    },
+)

src/mo2/stubs/generator/__init__.py

@@ -0,0 +1,5 @@
+# -*- encoding: utf-8 -*-
+
+import logging
+
+LOGGER = logging.getLogger(__name__)

src/mo2/stubs/generator/__main__.py

@@ -0,0 +1,240 @@
+# -*- encoding: utf-8 -*-
+
+import argparse
+import inspect
+import logging
+from pathlib import Path
+from typing import Callable, TextIO, cast
+
+import black
+import isort
+
+from . import LOGGER
+from .loader import load_mobase
+from .mtypes import Class, Function, PyType
+from .parser import is_enum
+from .register import MobaseRegister
+from .utils import Settings, clean_class
+from .writer import Writer
+
+
+def extract_objects(module: object, skips: list[str] = []) -> list[tuple[str, object]]:
+
+    objects: list[tuple[str, object]] = []
+
+    for name in dir(module):
+        if name.startswith("__") or name in skips:
+            continue
+
+        obj = getattr(module, name)
+
+        # skip submodules
+        if inspect.ismodule(obj):
+            continue
+
+        objects.append((name, obj))
+
+    return objects
+
+
+def add_mobase_header(writer: Writer):
+    writer.print_imports(
+        [
+            "abc",
+            ("enum", ["Enum"]),
+            ("pathlib", ["Path"]),
+            (
+                "typing",
+                [
+                    "Dict",
+                    "Iterator",
+                    "List",
+                    "Tuple",
+                    "Union",
+                    "Any",
+                    "Optional",
+                    "Callable",
+                    "overload",
+                    "Sequence",
+                    "Set",
+                    "TypeVar",
+                    "Type",
+                ],
+            ),
+            "PyQt6.QtCore",
+            "PyQt6.QtGui",
+            "PyQt6.QtWidgets",
+        ]
+    )
+
+    # Needs to define the MVariant and GameFeatureType type:
+    writer._print(f"MoVariant = {PyType.MO_VARIANT}")
+    writer._print(f"FileWrapper = {PyType.FILE_WRAPPER}")
+    writer._print(f"DirectoryWrapper = {PyType.DIRECTORY_WRAPPER}")
+    writer._print('GameFeatureType = TypeVar("GameFeatureType")')
+    writer._print()
+
+
+def add_mobase_widgets_header(writer: Writer):
+    writer.print_imports(
+        [
+            (
+                "typing",
+                ["List", "Tuple", "Union", "overload"],
+            ),
+            "PyQt6.QtCore",
+            "PyQt6.QtGui",
+            "PyQt6.QtWidgets",
+        ]
+    )
+
+
+def main():
+
+    parser = argparse.ArgumentParser("stubs generator for the MO2 python interface")
+    parser.add_argument(
+        "install_dir",
+        metavar="INSTALL_DIR",
+        type=Path,
+        default=None,
+        help="installation directory of Mod Organizer 2",
+    )
+    parser.add_argument(
+        "-o",
+        "--output",
+        type=Path,
+        default=Path("stubs/setup/mobase-stubs"),
+        help="output folder (default stubs/setup/mobase-stubs)",
+    )
+    parser.add_argument(
+        "-v",
+        "--verbose",
+        action="store_true",
+        help="verbose mode (all logs go to stderr)",
+    )
+    parser.add_argument(
+        "-c",
+        "--config",
+        type=Path,
+        default=None,
+        help="configuration file",
+    )
+
+    args = parser.parse_args()
+
+    logging.basicConfig()
+    LOGGER.setLevel(logging.WARNING)
+
+    if args.verbose:
+        LOGGER.setLevel(logging.INFO)
+
+    output_path: Path = args.output
+    config_path: Path | None = args.config
+
+    # create the register
+    register = MobaseRegister()
+
+    # load mobase (cannot simply do "import mobase")
+    mobase = load_mobase(Path(args.install_dir))
+
+    # headers
+    module_headers: dict[str, Callable[[Writer], None]] = {
+        "mobase": add_mobase_header,
+        "mobase.widgets": add_mobase_widgets_header,
+    }
+
+    # list of objects directly in mobase
+    module_objects: dict[str, list[tuple[str, object]]] = {
+        "mobase": extract_objects(
+            mobase,
+            [
+                # we do not want the real MoVariant
+                "MoVariant",
+                # the "real" IPlugin is IPluginBase
+                "IPlugin",
+            ],
+        ),
+        "mobase.widgets": extract_objects(mobase.widgets),
+    }
+
+    for name, objects in module_objects.items():
+
+        # load settings from the configuration
+        settings: Settings = Settings(register)
+        if config_path is not None:
+            with open(config_path, "r") as fp:
+                settings = Settings(register, fp, module=name)
+
+        for n, o in objects:
+            register.add_object(n, o)
+
+        # enum first, and then alphabetical, should be fine with the __future__ import
+        objects = sorted(
+            objects, key=lambda e: (isinstance(e[1], type), not is_enum(e[1]), e[0])
+        )
+
+        # Process everything:
+        for n, o in objects:
+
+            # Create the corresponding object:
+            c = register.make_object(n, o)
+
+            if isinstance(c, Class):
+
+                # Clean the class (e.g., remove duplicates methods due to wrappers):
+                clean_class(c)
+
+                # Path the class using the configuration:
+                settings.patch_class(c)
+
+            elif isinstance(c, list) and isinstance(c[0], Function):
+                settings.patch_functions(c)
+
+            else:
+                LOGGER.critical(
+                    "Cannot generated stubs for {}, unsupported object type.".format(n)
+                )
+
+        output_folder = output_path
+        if name != "mobase":
+            output_folder = output_path.joinpath(
+                name.replace("mobase.", "").replace(".", "/")
+            )
+
+        # create directory if required
+        output_folder.mkdir(parents=True, exist_ok=True)
+
+        # write everything
+        with open(output_folder.joinpath("__init__.pyi"), "w") as output:
+
+            writer = Writer(package=name, output=output, settings=settings)
+
+            # the __future__ import must be at the beginning
+            writer.print_imports([("__future__", ["annotations"])])
+            writer.print_version(settings.version)
+
+            module_headers[name](writer)
+
+            for n, o in objects:
+
+                # Get the corresponding object:
+                c = register.get_object(n)
+
+                if isinstance(c, Class):
+                    writer.print_class(c)
+
+                elif isinstance(c, list) and isinstance(c[0], Function):
+                    for fn in c:
+                        writer.print_function(fn)
+
+        black.format_file_in_place(
+            output_folder.joinpath("__init__.pyi"),
+            fast=False,
+            mode=black.Mode(is_pyi=True),
+            write_back=black.WriteBack.YES,
+        )
+        isort.api.sort_file(output_folder.joinpath("__init__.pyi"))
+
+
+if __name__ == "__main__":
+    main()

src/mo2/stubs/generator/loader.py

@@ -0,0 +1,58 @@
+# -*- encoding: utf-8 -*-
+
+import os
+import sys
+from pathlib import Path
+
+
+def load_mobase(path: Path):
+    """
+    Load the mobase from the given MO2 installation path and
+    returns it.
+
+    Args:
+        path: Path to the MO2 installation (folder containing the ModOrganizer.exe).
+
+    Returns: The mobase module.
+    """
+
+    # We need absolute path for loading DLL and modules:
+    path = path.resolve()
+
+    # Adding to PATH environment variable for python < 3.8 and
+    # via os.add_dll_directory (python >= 3.8).
+    # See: https://stackoverflow.com/a/58632354/2666289
+    if sys.version_info < (3, 8):
+        os.environ["PATH"] = os.pathsep.join(
+            [str(path), str(path.joinpath("dlls")), os.environ.get("PATH", "")]
+        )
+    else:
+        os.add_dll_directory(str(path))
+        os.add_dll_directory(str(path.joinpath("dlls")))
+
+    # We need to add plugins/data to sys.path, mainly for PyQt6
+    sys.path.insert(1, path.joinpath("plugins", "plugin_python", "libs").as_posix())
+
+    import mobase  # type: ignore
+
+    return mobase
+
+
+if __name__ == "__main__":
+
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        "Load mobase python module from MO2 installation directory"
+    )
+    parser.add_argument(
+        "install_dir",
+        metavar="INSTALL_DIR",
+        type=Path,
+        default=None,
+        help="installation directory of Mod Organizer 2",
+    )
+
+    args = parser.parse_args()
+
+    mobase = load_mobase(args.install_dir)

src/mo2/stubs/generator/mtypes.py

@@ -0,0 +1,432 @@
+# -*- encoding: utf-8 -*-
+
+from __future__ import annotations
+
+import re
+
+
+class PyType:
+    """
+    Class representing a python type.
+    """
+
+    # The `MoVariant` actual type - This should be list["MoVariant"] and
+    # Dict[str, "MoVariant"], but mypy (and other type checkers) do not
+    # handle recursive definition yet:
+    MO_VARIANT = """Union[None, bool, int, str, list[Any], dict[str, Any]]"""
+
+    # File/Directory wrappers
+    FILE_WRAPPER = """Union[str, PyQt6.QtCore.QFileInfo, Path]"""
+    DIRECTORY_WRAPPER = """Union[str, PyQt6.QtCore.QDir, Path]"""
+
+    name: str
+
+    def __init__(self, name: str | type):
+        # import only here since we change the path to find them
+        from PyQt6 import QtCore, QtGui, QtWidgets
+
+        if isinstance(name, type):
+            name = name.__name__
+
+        self.name = name.strip()
+
+        # replace QFlags[xxx] with xxx
+        self.name = re.sub(r"QFlags\[([^]]*)\]", r"\1", self.name)
+
+        # find PyQt types
+        for m in (QtCore, QtGui, QtWidgets):
+            if self.name in dir(m):
+                self.name = "{}.{}".format(m.__name__, self.name)
+
+    def typing(self) -> str:
+        """
+        Returns:
+            A valid typing representation for this type.
+        """
+        # IPluginBase -> IPlugin
+        if self.name == "mobase.IPluginBase":
+            return "IPlugin"
+
+        return self.name
+
+    def is_none(self) -> bool:
+        """
+        Check if this type represent None.
+
+        Returns:
+            True if this type represents None.
+        """
+        return self.name.lower() in ("none", "nonetype")
+
+    def is_object(self) -> bool:
+        """
+        Check if this type represent the generic "object" type.
+
+        Returns:
+            True if this type represent the generic object type.
+        """
+        return self.name.lower() == "object"
+
+    def is_any(self) -> bool:
+        """
+        Check if this type represent the typing "Any".
+
+        Returns:
+            True if this type represent the typing "Any".
+        """
+        return self.name == "Any"
+
+    def __str__(self):
+        return "Type({})".format(self.name)
+
+    def __repr__(self):
+        return str(self)
+
+    def __hash__(self):
+        return hash(self.name)
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, PyType):
+            return NotImplemented
+        return self.name == other.name
+
+
+class Return:
+    """
+    Class representing the return value of a function (type and documentation).
+    """
+
+    type: PyType
+    doc: str
+
+    def __init__(self, type: PyType, doc: str = ""):
+        self.type = type
+        self.doc = doc
+
+
+class Argument:
+    """
+    Class representing a function argument (type and eventual default value).
+    """
+
+    # Constant representing None since None indicates no default value:
+    DEFAULT_NONE = "None"
+
+    name: str
+    type: PyType
+    _value: str | None
+    doc: str
+
+    def __init__(
+        self, name: str, type: PyType, value: str | None = None, doc: str = ""
+    ):
+        self.name = name
+        self.type = type
+        self._value = value
+        self.doc = doc
+
+    @property
+    def value(self) -> str | None:
+
+        value = self._value
+
+        if value is None:
+            return None
+
+        # pybind11 puts enum in <> so we need to fix
+        m = re.match(r"<([^:]+):\s*[0-9]+>", value)
+        if m:
+            # if this is a mobase enum, we eed to use the upper case version
+            if self.type.name.startswith("mobase"):
+                value = m.group(1)
+                parts = value.split(".")
+                value = ".".join(parts[:-1] + [parts[-1].upper()])
+
+            # PyQt -> need to fix
+            elif self.type.name.startswith("PyQt"):
+                parts = m.group(1).split(".")
+                value = f"{self.type.name}.{parts[-1]}"
+            else:
+                value = m.group(1)
+
+        return value
+
+    def has_default_value(self) -> bool:
+        return self.value is not None
+
+    def __str__(self):
+        if self.has_default_value():
+            return "Arg({}={})".format(self.type, self.value)
+        return "Arg({})".format(self.type)
+
+    def __repr__(self):
+        return str(self)
+
+    def __hash__(self):
+        return hash(self.type)
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, Argument):
+            return NotImplemented
+        return self.type == other.type
+
+
+class Exception:
+
+    """
+    Small class representing exception that can be raised from functions.
+    """
+
+    type: PyType
+    doc: str
+
+    def __init__(self, type: PyType, doc: str = ""):
+        self.type = type
+        self.doc = doc
+
+
+class Function:
+    """
+    Class representing a function.
+    """
+
+    name: str
+    ret: Return
+    args: list[Argument]
+    overloads: bool
+    raises: list[Exception]
+    doc: str
+    deprecated: bool
+
+    def __init__(
+        self,
+        name: str,
+        ret: Return,
+        args: list[Argument],
+        has_overloads: bool = False,
+        doc: str = "",
+    ):
+        self.name = name
+        self.ret = ret
+        self.args = args
+        self.overloads = has_overloads
+        self.raises = []
+        self.doc = ""
+        self.deprecated = False
+
+    def has_overloads(self):
+        return self.overloads
+
+    def is_deprecated(self):
+        return self.deprecated
+
+
+class Method(Function):
+    """
+    Class representing a method.
+    """
+
+    cls: Class
+    abstract: str | bool
+    static: bool
+
+    def __init__(
+        self,
+        name: str,
+        ret: Return,
+        args: list[Argument],
+        static: bool,
+        has_overloads: bool = False,
+        doc: str = "",
+    ):
+        super().__init__(name, ret, args, has_overloads, doc)
+        self.static = static
+        self.abstract = "auto"
+
+    def is_abstract(self):
+        if self.name.startswith("__"):
+            return False
+        if self.abstract == "auto":
+            return self.cls.is_abstract()
+        return self.abstract
+
+    def is_static(self):
+        return self.static
+
+    def is_special(self):
+        return self.name.startswith("__")
+
+    def is_constructor(self):
+        return self.name == "__init__"
+
+
+class Constant:
+    """
+    Class representing a constant.
+    """
+
+    name: str
+    type: PyType | None
+    value: object
+    doc: str | None
+
+    def __init__(
+        self, name: str, type: PyType | None, value: object, doc: str | None = None
+    ):
+        self.name = name
+        self.type = type
+
+        # Note: The value is not used actually since we can hide it using `...`.
+        self.value = value
+        self.doc = doc
+
+
+class Property:
+    """
+    Class representing a property.
+    """
+
+    name: str
+    type: PyType
+    doc: str
+    read_only: bool
+
+    def __init__(self, name: str, type: PyType, read_only: bool, doc: str = ""):
+        self.name = name
+        self.type = type
+        self.read_only = read_only
+        self.doc = doc
+
+    def is_read_only(self):
+        return self.read_only
+
+
+class Class:
+    """
+    Class representing a class.
+    """
+
+    name: str
+    bases: list[Class]
+    methods: list[Method]
+    constants: list[Constant]
+    properties: list[Property]
+    inner_classes: list[Class]
+    outer_class: Class | None
+    doc: str
+    abstract: bool
+    deprecated: bool
+
+    def __init__(
+        self,
+        package: str,
+        name: str,
+        bases: list[Class],
+        methods: list[Method],
+        constants: list[Constant] = [],
+        properties: list[Property] = [],
+        inner_classes: list[Class] = [],
+        doc: str = "",
+    ):
+        self.package = package
+        self.name = name
+        self.bases = bases
+        self.methods = methods
+        self.properties = properties
+        self.constants = constants
+        self.inner_classes = inner_classes
+        self.doc = ""
+        self.abstract = False
+        self.outer_class = None
+        self.deprecated = False
+
+        # Update class in method:
+        for m in self.methods:
+            m.cls = self
+        for ic in self.inner_classes:
+            ic.outer_class = self
+
+    def is_abstract(self):
+        """
+        Returns:
+            True if this class is abstract, False otherwise.
+        """
+        return self.abstract or any(bc.is_abstract() for bc in self.bases)
+
+    @property
+    def canonical_name(self):
+        """
+        Returns:
+            The canonical name of this class.
+        """
+        name = self.name
+        oc = self.outer_class
+        while oc is not None:
+            name = "{}.{}".format(oc.name, name)
+            oc = oc.outer_class
+
+        return name
+
+    @property
+    def full_name(self):
+        """
+        Returns:
+            The full name of this class, i.e., package.canonical_name.
+        """
+        if self.package:
+            return f"{self.package}.{self.canonical_name}"
+        return self.canonical_name
+
+    @property
+    def all_bases(self) -> set[Class]:
+        """
+        Returns:
+            All the bases of this class, including bases of bases and so on.
+        """
+        bases = set(self.bases)
+        for b in self.bases:
+            bases = bases.union(b.all_bases)
+        return bases
+
+    def is_deprecated(self):
+        return self.deprecated
+
+
+class PyClass(Class):
+
+    """
+    Class use to wrap Python class to be used as parent class for some classes
+    in mobase.
+    """
+
+    def __init__(
+        self,
+        package: str,
+        name: str,
+    ):
+        super().__init__(package, name, [], [])
+        self.abstract = False
+
+
+class Enum(Class):
+
+    """
+    Class representing an enum.
+    """
+
+    def __init__(
+        self, package: str, name: str, values: dict[str, int], methods: list[Method]
+    ):
+        # Note: Boost.Python.enum inherits int() not enum.Enum() but for the sake
+        # of stubs, I think making them inherit enum.Enum is more appropriate:
+        super().__init__(
+            package,
+            name,
+            [PyClass("", "Enum")],
+            methods,
+            inner_classes=[],
+            constants=[Constant(k, None, v) for k, v in values.items()],
+        )
+
+    def is_abstract(self):
+        return False

src/mo2/stubs/generator/parser.py

@@ -0,0 +1,379 @@
+# -*- encoding: utf-8 -*-
+
+import inspect
+import re
+import types
+from collections import OrderedDict, defaultdict
+from itertools import chain
+from typing import Iterable, cast
+
+from . import LOGGER
+from .mtypes import (
+    Argument,
+    Class,
+    Constant,
+    Enum,
+    Function,
+    Method,
+    Property,
+    PyClass,
+    PyType,
+    Return,
+)
+from .register import MobaseRegister
+
+
+def magic_split(value: str, sep=",", open="(<[", close=")>]"):
+    """
+    Split the value according to the given separator, but keeps together elements
+    within the given separator. Useful to split C++ signature function since type names
+    can contain special characters...
+
+    Examples:
+        - magic_split("a,b,c", sep=",") -> ["a", "b", "c"]
+        - magic_split("a<b,c>,d(e,<k,c>),p) -> ["a<b,c>", "d(e,<k,c>)", "p"]
+
+    Args:
+        value: String to split.
+        sep: Separator to use.
+        open: List of opening characters.
+        close: List of closing characters. Order must match open.
+
+    Returns: The list of split parts from value.
+    """
+    i, j = 0, 0
+    s: list[str] = []
+    r = []
+    while i < len(value):
+        j = i + 1
+        while j < len(value):
+            c = value[j]
+
+            # Separator found and the stack is empty:
+            if c == sep and not s:
+                break
+
+            # Check close/open:
+            if c in open:
+                s.append(open.index(c))
+            elif c in close:
+                # The stack might be empty if the separator is also an opening element:
+                if not s and sep in open and j + 1 == len(value):
+                    pass
+                else:
+                    t = s.pop()
+                    if t != close.index(c):
+                        raise ValueError(
+                            "Found closing element {} for opening element {}.".format(
+                                c, open[t]
+                            )
+                        )
+            j += 1
+        r.append(value[i:j])
+        i = j + 1
+
+    assert not s
+
+    return r
+
+
+def parse_python_signature(s: str, name: str) -> tuple[PyType, list[Argument]]:
+    """
+    Parse a pybind11 python signature.
+
+    Args:
+        s: The signature to parse.
+        name: Name of the function.
+
+    Returns: (RType, Args) where RType is a Type object, and Args is a list of Arg
+        objects containing Type.
+    """
+
+    m = re.search(rf"{name}\((.*)\)\s*->\s*([^:]+)\s*", s)
+    if not m:
+        raise ValueError(f"invalid signature: {s}")
+
+    args = magic_split(m.group(1).strip(), ",", open="[", close="]")
+    return_type = m.group(2)
+
+    arguments = []
+    for i, pa in enumerate(args):
+        m = re.search(
+            r"(?P<name>[^:]+)\s*:\s*(?P<type>[^=]+)\s*(=\s*(?P<value>[^,]+))?",
+            pa.strip(),
+        )
+        if not m:
+            raise ValueError(f"invalid argument: {pa}, {s}")
+
+        matches = m.groupdict()
+        arguments.append(
+            Argument(matches["name"], PyType(matches["type"]), matches["value"])
+        )
+
+    return PyType(return_type), arguments
+
+
+def is_enum(e: type) -> bool:
+    """Check if the given class is an enumeration.
+
+    Args:
+        e: The class object to check.
+
+    Returns: True if the object is an enumeration (boost::python enumeration, not
+        python) False otherwise.
+    """
+    # Yet to find a better way...
+    if not isinstance(e, type):
+        return False
+    return hasattr(e, "__entries")
+
+
+class Overload:
+
+    """Small class to avoid mypy issues..."""
+
+    return_type: PyType
+    arguments: list[Argument]
+
+    def __init__(self, return_type: PyType, arguments: list[Argument]):
+        self.return_type = return_type
+        self.arguments = arguments
+
+
+def parse_pybind11_function_docstring(e) -> list[Overload]:
+    """
+    Parse the docstring of the given element.
+
+    Args:
+        e: The function to "parse".
+
+    Returns:
+        A list of overloads for the given function.
+    """
+    lines = e.__doc__.strip().split("\n")
+
+    signatures: list[str]
+    if len(lines) == 1:
+        signatures = lines
+    else:
+        signatures = []
+        for line in lines:
+            m = re.match(rf"^[0-9]+[.]\s+({e.__name__}.*)$", line)
+            if m:
+                signatures.append(m.group(1).strip())
+
+    # We are going to parse the python and C++ signature, and try to merge
+    # them...
+    overloads: list[Overload] = []
+    for signature in signatures:
+
+        # fix MOBase:: in some places to get proper Python types
+        signature = signature.replace("MOBase::", "mobase.").replace("::", ".")
+
+        try:
+            return_type, arguments = parse_python_signature(signature, e.__name__)
+        except ValueError:
+            raise ValueError(f"invalid signature: {e.__name__}, {e.__doc__}")
+        overloads.append(Overload(return_type=return_type, arguments=arguments))
+
+    return overloads
+
+
+def make_functions(e) -> list[Function]:
+    overloads = parse_pybind11_function_docstring(e)
+
+    return [
+        Function(
+            e.__name__,
+            Return(overload.return_type),
+            overload.arguments,
+            has_overloads=len(overloads) > 1,
+        )
+        for overload in overloads
+    ]
+
+
+def make_class(e: type, register: MobaseRegister) -> Class:
+    """
+    Constructs a Class object from the given python class.
+
+    Args:
+        e: The python class (created from boost) to construct an object for.
+        class_register:
+
+    Returns: A Class object corresponding to the given class.
+    """
+
+    base_classes_s: list[str] = []
+
+    # Kind of ugly, but...:
+    for c in inspect.getmro(e):
+        if c != e and c.__module__ == "mobase":
+            base_classes_s.append(c.__name__)
+        if c.__module__ == "pybind11_builtins":
+            break
+
+    first_base = inspect.getmro(e)[1]
+
+    # This contains ALL the parent classes, not the direct ones:
+    base_classes: list[Class] = [
+        register.make_object(name) for name in base_classes_s  # type: ignore
+    ]
+
+    # retrieve all the attributes that are not in a base class
+    all_attrs = [
+        (n, getattr(e, n))
+        for n in dir(e)
+        if not hasattr(first_base, n) or getattr(first_base, n) is not getattr(e, n)
+    ]
+
+    # members to exclude
+    EXCLUDED_MEMBERS = [
+        "__init_subclass__",
+        "__module__",
+        "__subclasshook__",
+        "__hash__",
+        "__getstate__",
+        "__setstate__",
+        "__index__",
+        "__repr__",
+    ]
+    all_attrs = [a for a in all_attrs if a[0] not in EXCLUDED_MEMBERS]
+
+    # fetch all attributes from the base classes
+    base_attrs: dict[str, list[Constant | Property | Method | Class]] = defaultdict(
+        list
+    )
+    for bc in base_classes:
+        for a in cast(
+            Iterable[Constant | Property | Method | Class],
+            chain(bc.constants, bc.methods, bc.properties, bc.inner_classes),
+        ):
+            base_attrs[a.name].append(a)
+
+    # retrieve the enumerations and classes
+    inner_classes = [ic[1] for ic in all_attrs if isinstance(ic[1], type)]
+
+    pinner_classes: list[Class] = [
+        cast(Class, register.make_object(f"{e.__qualname__}.{ic.__name__}", ic))
+        for ic in inner_classes
+    ]
+
+    # find the methods
+    raw_methods = [
+        m[1] for m in all_attrs if callable(m[1]) and m[1] not in inner_classes
+    ]
+    raw_methods = sorted(raw_methods, key=lambda m: str(m.__name__))
+    raw_methods = [m for m in raw_methods if m.__doc__ is not None]
+
+    # remove __init__
+    raw_methods = [
+        m for m in raw_methods if not isinstance(m, types.WrapperDescriptorType)
+    ]
+
+    methods: list[Method] = []
+    for method in raw_methods:
+        if method.__doc__ is None:
+            continue
+
+        # __eq__ must accept an object in python (and it does with pybind11), so we
+        # force the overload
+        if method.__name__ in ["__eq__", "__ne__"]:
+            overloads = [
+                Overload(
+                    return_type=PyType("bool"),
+                    arguments=[
+                        Argument("self", PyType(e.__module__ + "." + e.__qualname__)),
+                        Argument("other", PyType("object")),
+                    ],
+                )
+            ]
+
+        # otherwise we parse the docstring
+        else:
+            overloads = parse_pybind11_function_docstring(method)
+
+        for overload in overloads:
+            args = overload.arguments
+
+            # pybind11 seems to be consistent with the naming of "self", so we can
+            # mostly rely on it
+            static = len(args) == 0 or args[0].name != "self"
+
+            # we need to fix some default values (basically default values that
+            # comes from inner enum) and argument
+            for arg in overload.arguments:
+                if arg.has_default_value():
+                    value: str = arg.value  # type: ignore
+                    base_name = value.split(".")[0]
+
+                    for base_class in base_classes:
+                        for biclass in base_class.inner_classes:
+                            if isinstance(biclass, Enum) and biclass.name == base_name:
+                                arg._value = base_class.name + "." + value
+
+            methods.append(
+                Method(
+                    method.__name__,
+                    Return(overload.return_type),
+                    overload.arguments,
+                    static=static,
+                    has_overloads=len(overloads) > 1,
+                )
+            )
+
+    # Retrieve the attributes:
+    constants = []
+    properties = []
+    for name, attr in all_attrs:
+        if callable(attr) or isinstance(attr, type):
+            continue
+
+        # Maybe we should check an override here (e.g., different value for a constant):
+        if name in base_attrs:
+            continue
+
+        if isinstance(attr, property):
+            properties.append(Property(name, PyType("Any"), attr.fset is None))
+        elif not hasattr(attr, "__name__"):
+            constants.append(Constant(name, PyType(type(attr).__name__), attr))
+
+    direct_bases: list[Class] = []
+    for c in e.__bases__:
+        if c.__module__ != "pybind11_builtins":
+            direct_bases.append(register.get_object(c.__name__))
+
+    # Forcing QWidget base for XWidget classes since these do not show up
+    # and we use a trick:
+    if e.__name__.endswith("Widget"):
+        LOGGER.info(
+            "Forcing base {} for class {}.".format(
+                "PyQt6.QtWidgets.QWidget", e.__name__
+            )
+        )
+        direct_bases.append(PyClass("PyQt6.QtWidgets", "QWidget"))
+
+    # check if it an enum
+    if is_enum(e):
+        # all pybind11 enums have a .__entries attribute
+        values = e.__entries  # type: ignore
+
+        # drop the __init__
+        methods = [m for m in methods if m.name != "__init__"]
+
+        return Enum(
+            e.__module__,
+            e.__name__,
+            OrderedDict((name, value) for name, (value, _) in values.items()),
+            methods=methods,
+        )
+
+    return Class(
+        e.__module__,
+        e.__name__,
+        direct_bases,
+        methods,
+        inner_classes=pinner_classes,
+        properties=properties,
+        constants=constants,
+    )

src/mo2/stubs/generator/register.py

@@ -0,0 +1,62 @@
+# -*- encoding: utf-8 -*-
+
+from __future__ import annotations
+
+from collections import OrderedDict
+
+from .mtypes import Class, Function
+
+
+class MobaseRegister:
+    """
+    Class that register classes.
+    """
+
+    objects: dict[str, Class | list[Function]]
+
+    def __init__(self):
+        self.raw_objects: dict[str, type] = OrderedDict()
+        self.objects = {}
+
+    def add_object(self, name, object):
+        self.raw_objects[name] = object
+
+    def make_object(self, name: str, e: type | None = None) -> Class | list[Function]:
+        """
+        Construct a Function, Class or Enum for the given object.
+
+        Args:
+            name: The name of the object to inspect.
+            e: The object to inspect, or None to fetch it from the underlying list.
+
+        Returns:
+            A Class object for the given type, or a list of function overloads.
+        """
+        from .parser import make_class, make_functions
+
+        if e is None:
+            e = self.raw_objects[name]
+
+        if name not in self.raw_objects:
+            self.raw_objects[name] = e
+
+        if name not in self.objects:
+            if isinstance(e, type):
+                self.objects[name] = make_class(e, self)
+            elif callable(e):
+                self.objects[name] = make_functions(e)
+
+        return self.objects[name]
+
+    def get_object(self, name: str):
+        """
+        Retrieve the object if the given name. Fails if no object with this
+        name exists (if `make_object(name, ...)` has never been called).
+
+        Args:
+            name: Name of the object to retrieve.
+
+        Returns:
+            The object with the given name.
+        """
+        return self.objects[name]