Internal error: De-serialization failure: TypeInfo not fixed #18087
Description
Crash Report
The traceback below happens on warm-cache runs. The next run rm -Rf .mypy_cache finishes without issue. The problem occurs irrespective of whether orjson is used.
Traceback
pytato/target/python/__init__.py:39: note: class abc.abstractproperty is deprecated: Use 'property' with 'abstractmethod' instead [deprecated]
pytato/scalar_expr.py:97: error: Incompatible return value type (got "int | integer[Any] | float | complex | inexact[Any] | bool | Expression | tuple[ExpressionT, ...]", expected "int | integer[Any] | float | complex | inexact[Any] | Expression") [return-value]
pytato/scalar_expr.py:149: error: Argument 1 to "Reduce" has incompatible type "int | integer[Any] | float | complex | inexact[Any] | bool | Expression | tuple[ExpressionT, ...]"; expected "int | integer[Any] | float | complex | inexact[Any] | Expression" [arg-type]
Traceback (most recent call last):
File "<frozen runpy>", line 198, in _run_module_as_main
File "<frozen runpy>", line 88, in _run_code
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/__main__.py", line 37, in <module>
console_entry()
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/__main__.py", line 15, in console_entry
main()
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/main.py", line 109, in main
res, messages, blockers = run_build(sources, options, fscache, t0, stdout, stderr)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/main.py", line 193, in run_build
res = build.build(sources, options, None, flush_errors, fscache, stdout, stderr)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/build.py", line 194, in build
result = _build(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/build.py", line 269, in _build
graph = dispatch(sources, manager, stdout)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/build.py", line 2936, in dispatch
process_graph(graph, manager)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/build.py", line 3334, in process_graph
process_stale_scc(graph, scc, manager)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/build.py", line 3435, in process_stale_scc
graph[id].type_check_first_pass()
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/build.py", line 2305, in type_check_first_pass
self.type_checker().check_first_pass()
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 483, in check_first_pass
self.accept(d)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 592, in accept
stmt.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 1196, in accept
return visitor.visit_class_def(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 2461, in visit_class_def
self.accept(defn.defs)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 592, in accept
stmt.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 1277, in accept
return visitor.visit_block(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 2951, in visit_block
self.accept(s)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 592, in accept
stmt.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 827, in accept
return visitor.visit_func_def(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 1046, in visit_func_def
self._visit_func_def(defn)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 1050, in _visit_func_def
self.check_func_item(defn, name=defn.name)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 1084, in check_func_item
self.check_func_def(defn, typ, name, allow_empty)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 1360, in check_func_def
self.accept(item.body)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 592, in accept
stmt.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 1277, in accept
return visitor.visit_block(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 2951, in visit_block
self.accept(s)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 592, in accept
stmt.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 1364, in accept
return visitor.visit_assignment_stmt(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 3000, in visit_assignment_stmt
self.check_assignment(s.lvalues[-1], s.rvalue, s.type is None, s.new_syntax)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checker.py", line 3217, in check_assignment
rvalue_type = self.expr_checker.accept(rvalue, type_context=type_context)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5885, in accept
typ = node.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 1984, in accept
return visitor.visit_call_expr(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 483, in visit_call_expr
return self.visit_call_expr_inner(e, allow_none_return=allow_none_return)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 617, in visit_call_expr_inner
ret_type = self.check_call_expr_with_callee_type(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1474, in check_call_expr_with_callee_type
ret_type, callee_type = self.check_call(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1572, in check_call
return self.check_callable_call(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1786, in check_callable_call
arg_types = self.infer_arg_types_in_context(callee, args, arg_kinds, formal_to_actual)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1960, in infer_arg_types_in_context
res[ai] = self.accept(args[ai], arg_type)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5885, in accept
typ = node.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 2398, in accept
return visitor.visit_generator_expr(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5647, in visit_generator_expr
return self.check_generator_or_comprehension(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5683, in check_generator_or_comprehension
return self.check_call(constructor, [gen.left_expr], [nodes.ARG_POS], gen)[0]
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1572, in check_call
return self.check_callable_call(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1757, in check_callable_call
callee = self.infer_function_type_arguments(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 2073, in infer_function_type_arguments
arg_types = self.infer_arg_types_in_context(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1960, in infer_arg_types_in_context
res[ai] = self.accept(args[ai], arg_type)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5885, in accept
typ = node.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 1984, in accept
return visitor.visit_call_expr(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 483, in visit_call_expr
return self.visit_call_expr_inner(e, allow_none_return=allow_none_return)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 617, in visit_call_expr_inner
ret_type = self.check_call_expr_with_callee_type(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1474, in check_call_expr_with_callee_type
ret_type, callee_type = self.check_call(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1572, in check_call
return self.check_callable_call(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1786, in check_callable_call
arg_types = self.infer_arg_types_in_context(callee, args, arg_kinds, formal_to_actual)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1960, in infer_arg_types_in_context
res[ai] = self.accept(args[ai], arg_type)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5885, in accept
typ = node.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 2313, in accept
return visitor.visit_list_expr(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 4980, in visit_list_expr
return self.check_lst_expr(e, "builtins.list", "<list>")
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5046, in check_lst_expr
out = self.check_call(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1572, in check_call
return self.check_callable_call(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1757, in check_callable_call
callee = self.infer_function_type_arguments(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 2073, in infer_function_type_arguments
arg_types = self.infer_arg_types_in_context(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1960, in infer_arg_types_in_context
res[ai] = self.accept(args[ai], arg_type)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5885, in accept
typ = node.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 1984, in accept
return visitor.visit_call_expr(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 483, in visit_call_expr
return self.visit_call_expr_inner(e, allow_none_return=allow_none_return)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 617, in visit_call_expr_inner
ret_type = self.check_call_expr_with_callee_type(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1474, in check_call_expr_with_callee_type
ret_type, callee_type = self.check_call(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1572, in check_call
return self.check_callable_call(
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1786, in check_callable_call
arg_types = self.infer_arg_types_in_context(callee, args, arg_kinds, formal_to_actual)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 1960, in infer_arg_types_in_context
res[ai] = self.accept(args[ai], arg_type)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5885, in accept
typ = node.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 1984, in accept
return visitor.visit_call_expr(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 483, in visit_call_expr
return self.visit_call_expr_inner(e, allow_none_return=allow_none_return)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 573, in visit_call_expr_inner
self.accept(e.callee, type_context, always_allow_any=True, is_callee=True)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 5885, in accept
typ = node.accept(self)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 1908, in accept
return visitor.visit_member_expr(self)
~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 3282, in visit_member_expr
result = self.analyze_ordinary_member_access(e, is_lvalue)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkexpr.py", line 3307, in analyze_ordinary_member_access
member_type = analyze_member_access(
e.name,
...<10 lines>...
is_self=is_self,
)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkmember.py", line 206, in analyze_member_access
result = _analyze_member_access(name, typ, mx, override_info)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkmember.py", line 225, in _analyze_member_access
return analyze_instance_member_access(name, typ, mx, override_info)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkmember.py", line 356, in analyze_instance_member_access
return analyze_member_var_access(name, typ, info, mx)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkmember.py", line 537, in analyze_member_var_access
return analyze_var(name, v, itype, info, mx, implicit=implicit)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/checkmember.py", line 814, in analyze_var
dispatched_type = meet.meet_types(mx.original_type, itype)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/meet.py", line 96, in meet_types
if is_proper_subtype(s, t, ignore_promotions=True):
~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 222, in is_proper_subtype
return _is_subtype(left, right, subtype_context, proper_subtype=True)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 350, in _is_subtype
return left.accept(SubtypeVisitor(orig_right, subtype_context, proper_subtype))
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/types.py", line 1470, in accept
return visitor.visit_instance(self)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 595, in visit_instance
if not check_type_parameter(
~~~~~~~~~~~~~~~~~~~~^
lefta, righta, COVARIANT, self.proper_subtype, self.subtype_context
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
):
^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 367, in check_type_parameter
return is_proper_subtype(left, right, subtype_context=subtype_context)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 222, in is_proper_subtype
return _is_subtype(left, right, subtype_context, proper_subtype=True)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 350, in _is_subtype
return left.accept(SubtypeVisitor(orig_right, subtype_context, proper_subtype))
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/types.py", line 779, in accept
return visitor.visit_param_spec(self)
~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 652, in visit_param_spec
return self._is_subtype(left.prefix, right.prefix)
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 412, in _is_subtype
return is_proper_subtype(left, right, subtype_context=self.subtype_context)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 222, in is_proper_subtype
return _is_subtype(left, right, subtype_context, proper_subtype=True)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 350, in _is_subtype
return left.accept(SubtypeVisitor(orig_right, subtype_context, proper_subtype))
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/types.py", line 1756, in accept
return visitor.visit_parameters(self)
~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 674, in visit_parameters
return are_parameters_compatible(
left,
...<4 lines>...
ignore_pos_arg_names=self.subtype_context.ignore_pos_arg_names,
)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 1680, in are_parameters_compatible
if not are_args_compatible(
~~~~~~~~~~~~~~~~~~~^
left_arg,
^^^^^^^^^
...<4 lines>...
allow_imprecise_kinds=right.imprecise_arg_kinds,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
):
^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 1840, in are_args_compatible
return is_compat(right.typ, left.typ)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 412, in _is_subtype
return is_proper_subtype(left, right, subtype_context=self.subtype_context)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 222, in is_proper_subtype
return _is_subtype(left, right, subtype_context, proper_subtype=True)
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 350, in _is_subtype
return left.accept(SubtypeVisitor(orig_right, subtype_context, proper_subtype))
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/types.py", line 1470, in accept
return visitor.visit_instance(self)
~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/subtypes.py", line 455, in visit_instance
if left.type.fallback_to_any and not self.proper_subtype:
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/andreas/src/env-3.13/lib/python3.13/site-packages/mypy/nodes.py", line 3516, in __getattribute__
raise AssertionError(object.__getattribute__(self, "msg"))
AssertionError: De-serialization failure: TypeInfo not fixed
pytato/scalar_expr.py:217: error: INTERNAL ERROR -- Please try using mypy master on GitHub:
https://mypy.readthedocs.io/en/stable/common_issues.html#using-a-development-mypy-build
Please report a bug at https://github.com/python/mypy/issues
version: 1.14.0+dev.b59878ec74bc4dd4dc3eafc1d3cdb2668da5f60a
To Reproduce
I ran into this using a pile of WIP branches on my machine. If you need a (big gnarly messy) reproducer, I can try and push those branches up.
Your Environment
- Mypy version used: 1.14.0+dev.b59878ec74bc4dd4dc3eafc1d3cdb2668da5f60a
- Mypy command-line flags:
- Mypy configuration options from
mypy.ini(and other config files):
[tool.mypy]
strict = true
warn_unused_ignores = true
[[tool.mypy.overrides]]
module = [
"islpy",
"pyopencl.*",
"jax.*",
"pygments.*",
"mako.*",
]
ignore_missing_imports = true
[[tool.mypy.overrides]]
module = [
"pytato.transform",
]
allow_subclassing_any = true
[[tool.mypy.overrides]]
module = [
"pytato.raising",
]
# We'll be getting rid of it, no point in fixing it.
ignore_errors = true
- Python version used: 3.13
- Operating system and version: Debian testing/unstable