Add stubtest to CI with allowlists

.github/workflows/test.yml

@@ -32,3 +32,18 @@ jobs:
 
       - name: Type check (mypy)
         run: uv run mypy tests
+
+      - name: Stub test (celery)
+        run: uv run stubtest celery --allowlist celery-stubs/allowlist.txt
+
+      - name: Stub test (kombu)
+        run: uv run stubtest kombu --allowlist kombu-stubs/allowlist.txt
+
+      - name: Stub test (billiard)
+        run: uv run stubtest billiard --allowlist billiard-stubs/allowlist.txt
+
+      - name: Stub test (amqp)
+        run: uv run stubtest amqp
+
+      - name: Stub test (vine)
+        run: uv run stubtest vine

billiard-stubs/allowlist.txt

@@ -1,2 +1,27 @@
+# Billiard stubtest allowlist
+# ===========================
+
+# -----------------------------------------------------------------------------
+# Platform-specific modules
+# -----------------------------------------------------------------------------
+
 # billiard.popen_spawn_win32 is Windows-only and cannot be tested on Linux
 billiard.popen_spawn_win32
+
+# -----------------------------------------------------------------------------
+# Lock type mismatches (Python < 3.13)
+# -----------------------------------------------------------------------------
+# threading.Lock was a factory function (allocate_lock) until Python 3.13,
+# where it became a proper class. Since CI runs on Python 3.10, stubtest sees
+# the function while the stub types it as a class (matching typeshed and user
+# expectations for type annotations).
+
+billiard.dummy.Lock
+billiard.pool.Lock
+
+# -----------------------------------------------------------------------------
+# Disjoint base classes
+# -----------------------------------------------------------------------------
+# AuthenticationString uses __slots__ which makes it a disjoint base.
+
+billiard.process.AuthenticationString

billiard-stubs/einfo.pyi

@@ -4,16 +4,38 @@ from typing import Any, TypeAlias
 __all__ = ["ExceptionInfo", "Traceback"]
 
 class _Code:
+    co_filename: str
+    co_name: str
+    co_argcount: int
+    co_cellvars: tuple[()]
+    co_firstlineno: int
+    co_flags: int
+    co_freevars: tuple[()]
+    co_code: bytes
+    co_lnotab: bytes
+    co_names: tuple[str, ...]
+    co_nlocals: int
+    co_stacksize: int
+    co_varnames: tuple[()]
+
     def __init__(self, code: Any) -> None: ...
-    @property
-    def co_positions(self) -> Any: ...
 
 class _Frame:
     Code = _Code
+    f_builtins: dict[str, Any]
+    f_globals: dict[str, Any]
+    f_locals: dict[str, Any]
+    f_back: None
+    f_trace: None
+    f_exc_traceback: None
+    f_exc_type: None
+    f_exc_value: None
+    f_code: _Code
+    f_lineno: int
+    f_lasti: int
+    f_restricted: bool
 
     def __init__(self, frame: Any) -> None: ...
-    @property
-    def co_positions(self) -> Any: ...
 
 class Traceback:
     Frame = _Frame

celery-stubs/allowlist.txt

@@ -0,0 +1,141 @@
+# Celery stubtest allowlist
+# =========================
+# This file contains stubtest errors that are intentional design choices.
+
+# -----------------------------------------------------------------------------
+# Class-level vs instance-level attributes
+# -----------------------------------------------------------------------------
+# These attributes are None at class level but always set on instances.
+# We type them as non-optional since users work with instances, not classes.
+# This provides better IDE autocomplete and type checking for the common case.
+
+# Celery app instance attributes (always set in __init__)
+celery.app.base.Celery.main
+celery.app.base.Celery.steps
+celery.app.base.Celery.user_options
+
+# Celery signal attributes (Signal instances, not None, on app instances)
+celery.app.base.Celery.on_configure
+celery.app.base.Celery.on_after_configure
+celery.app.base.Celery.on_after_finalize
+celery.app.base.Celery.on_after_fork
+
+# Task instance attributes (always set when task is bound)
+celery.app.task.Task.app
+celery.app.task.Task.name
+celery.Task.acks_late
+celery.Task.acks_on_failure_or_timeout
+celery.Task.app
+celery.Task.name
+
+# AsyncResult instance attributes (always resolved in __init__)
+celery.result.AsyncResult.app
+celery.result.AsyncResult.backend
+celery.result.AsyncResult.id
+
+# Signal.receivers (always initialized as list in __init__)
+celery.utils.dispatch.Signal.receivers
+celery.utils.dispatch.signal.Signal.receivers
+
+# Proxy objects for current app/task (always return app/task, not None)
+celery._state.current_app
+celery._state.current_task
+celery.current_app
+celery.current_task
+celery.app.default_app
+
+# -----------------------------------------------------------------------------
+# getitem_property descriptor issues
+# -----------------------------------------------------------------------------
+# Celery uses a custom getitem_property descriptor that provides both
+# dict-style access (sig['args']) and attribute access (sig.args).
+# stubtest cannot reconcile @property stubs with this runtime descriptor.
+# The @property typing is correct for users who access these as attributes.
+
+celery.canvas.Signature.args
+celery.canvas.Signature.id
+celery.canvas.Signature.immutable
+celery.canvas.Signature.kwargs
+celery.canvas.Signature.options
+celery.canvas.Signature.parent_id
+celery.canvas.Signature.root_id
+celery.canvas.Signature.task
+celery.canvas._chain.tasks
+celery.canvas.group.tasks
+
+# Re-exports of Signature (same getitem_property issues)
+celery.Signature.args
+celery.Signature.id
+celery.Signature.immutable
+celery.Signature.kwargs
+celery.Signature.options
+celery.Signature.parent_id
+celery.Signature.root_id
+celery.Signature.task
+celery.group.tasks
+
+# -----------------------------------------------------------------------------
+# SQLAlchemy model metaclass issues
+# -----------------------------------------------------------------------------
+# SQLAlchemy models use a metaclass that creates class-level descriptors.
+# stubtest cannot properly introspect these InstrumentedAttribute types.
+
+celery.backends.database.models.Task
+celery.backends.database.models.TaskExtended
+celery.backends.database.models.TaskSet
+
+# -----------------------------------------------------------------------------
+# Intentionally stricter signatures
+# -----------------------------------------------------------------------------
+
+# Control.__init__: runtime has app=None but immediately crashes if None is
+# passed because it accesses app.conf. Our stub correctly requires app.
+celery.app.control.Control.__init__
+
+# add_periodic_task: runtime uses tuple() as falsy default for kwargs, which
+# gets converted to {} internally. We type as dict | None for clarity.
+celery.app.base.Celery.add_periodic_task
+celery.app.Celery.add_periodic_task
+celery.Celery.add_periodic_task
+
+# -----------------------------------------------------------------------------
+# Module __all__ differences
+# -----------------------------------------------------------------------------
+# Runtime __all__ includes standard module attributes (__path__, __package__,
+# __file__, __doc__) which are not meaningful in type stubs.
+
+celery.__all__
+
+# -----------------------------------------------------------------------------
+# Re-exports (duplicate errors from base modules)
+# -----------------------------------------------------------------------------
+# These are re-exported from submodules, same issues as originals above.
+
+celery.app.Celery.main
+celery.app.Celery.steps
+celery.app.Celery.user_options
+celery.app.Celery.on_configure
+celery.app.Celery.on_after_configure
+celery.app.Celery.on_after_finalize
+celery.app.Celery.on_after_fork
+celery.Celery.main
+celery.Celery.steps
+celery.Celery.user_options
+celery.Celery.on_configure
+celery.Celery.on_after_configure
+celery.Celery.on_after_finalize
+celery.Celery.on_after_fork
+
+# -----------------------------------------------------------------------------
+# @functools.total_ordering generated methods (Python 3.10 only)
+# -----------------------------------------------------------------------------
+# These comparison methods are generated by @total_ordering and have an
+# internal NotImplemented=NotImplemented parameter in Python 3.10.
+
+celery.beat.ScheduleEntry.__ge__
+celery.beat.ScheduleEntry.__gt__
+celery.beat.ScheduleEntry.__le__
+celery.utils.timer2.Entry.__ge__
+celery.utils.timer2.Entry.__gt__
+celery.utils.timer2.Entry.__le__
+

celery-stubs/contrib/sphinx.pyi

@@ -1,4 +1,4 @@
-from typing import Any, ClassVar, Literal
+from typing import Any, Literal
 
 from celery.app.task import Task as BaseTask
 from docutils import nodes
@@ -7,8 +7,8 @@ from sphinx.ext.autodoc import Documenter, FunctionDocumenter
 from typing_extensions import override
 
 class TaskDocumenter(FunctionDocumenter):
-    objtype: ClassVar[str]
-    member_order: ClassVar[int]
+    objtype: str  # type: ignore[misc]  # override parent's instance var with class var
+    member_order: int  # type: ignore[misc]  # override parent's instance var with class var
 
     @override
     @classmethod

kombu-stubs/allowlist.txt

@@ -0,0 +1,40 @@
+# Kombu stubtest allowlist
+# ========================
+
+# -----------------------------------------------------------------------------
+# Optional transports / extensions
+# -----------------------------------------------------------------------------
+
+# librabbitmq is a legacy optional C extension.
+kombu.transport.librabbitmq
+
+# gcpubsub.Transport.channel_errors has a complex runtime type that's
+# a dynamically constructed tuple of exception classes from google-cloud-pubsub.
+# We simplify this to tuple[type[Exception], ...] in the stub.
+kombu.transport.gcpubsub.Transport.channel_errors
+
+# -----------------------------------------------------------------------------
+# @functools.total_ordering generated methods (Python 3.10 only)
+# -----------------------------------------------------------------------------
+# These comparison methods are generated by @total_ordering and have an
+# internal NotImplemented=NotImplemented parameter in Python 3.10.
+
+kombu.asynchronous.timer.Entry.__ge__
+kombu.asynchronous.timer.Entry.__gt__
+kombu.asynchronous.timer.Entry.__le__
+
+# -----------------------------------------------------------------------------
+# Lock type mismatches (Python < 3.13)
+# -----------------------------------------------------------------------------
+# threading.Lock was a factory function (allocate_lock) until Python 3.13,
+# where it became a proper class. The stub types Lock as a class to match
+# typeshed and user expectations for type annotations.
+
+kombu.clocks.LamportClock.__init__
+
+# -----------------------------------------------------------------------------
+# Not yet released in kombu
+# -----------------------------------------------------------------------------
+# reprkwargs is fixed in kombu main but not released yet (kombu 5.6.2).
+# Remove this entry once kombu releases a version with the fix.
+kombu.utils.reprkwargs

kombu-stubs/utils/__init__.pyi

@@ -7,8 +7,6 @@ from kombu.utils.functional import reprkwargs as reprkwargs
 from kombu.utils.functional import retry_over_time as retry_over_time
 from kombu.utils.objects import cached_property as cached_property
 
-# Note: runtime __all__ includes reprkwargs but it's not actually imported in kombu (kombu bug)
-# We include it here to match runtime __all__, stubtest allowlist handles the missing definition
 __all__ = (
     "EqualityDict",
     "cached_property",

pyproject.toml

@@ -36,29 +36,30 @@ Repository = "https://github.com/sbdchd/celery-types"
 
 [dependency-groups]
 dev = [
+    "azure-servicebus>=7.14.3",
+    "azure-storage-queue>=12.14.1",
+    "basedpyright>=1.36.1",
+    "boto3-stubs>=1.42.19",
+    "boto3>=1.42.19",
+    "botocore>=1.42.19",
     "celery>=5.0,<6",
+    "confluent-kafka>=2.12.2",
     "django-types>=0.3.1,<0.4",
     "django>=3.1,<4",
-    "ruff>=0.14.9",
+    "google-cloud-monitoring>=2.28.0",
+    "google-cloud-pubsub>=2.34.0",
+    "kombu>=5.6.2",
     "mypy>=1.19.0",
-    "basedpyright>=1.36.1",
     "prek>=0.2.23",
-    "sphinx>=8.1.3",
+    "pycurl>=7.45.7",
+    "pymongo>=4.15.5",
     "pytest>=9.0.2",
-    "types-docutils>=0.22.3.20251115",
-    "boto3>=1.42.19",
-    "botocore>=1.42.19",
-    "azure-servicebus>=7.14.3",
-    "azure-storage-queue>=12.14.1",
-    "google-cloud-pubsub>=2.34.0",
     "redis>=7.1.0",
-    "sqlalchemy>=2.0.45",
-    "pymongo>=4.15.5",
-    "boto3-stubs>=1.42.19",
+    "ruff>=0.14.9",
     "six>=1.16.0",
-    "pycurl>=7.45.7",
-    "confluent-kafka>=2.12.2",
-    "google-cloud-monitoring>=2.28.0",
+    "sphinx>=8.1.3",
+    "sqlalchemy>=2.0.45",
+    "types-docutils>=0.22.3.20251115",
 ]