fix reportUnsafeMultipleInheritance false positive in diamond inheritance scenarios, which is safe due to how MRO works

[DetachHead]

fixes #657

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

paasta (https://github.com/yelp/paasta)
-   /tmp/mypy_primer/projects/paasta/paasta_tools/paastaapi/exceptions.py:18:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/paasta/paasta_tools/paastaapi/exceptions.py:47:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/paasta/paasta_tools/paastaapi/exceptions.py:84:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
- 1578 errors, 24069 warnings, 0 notes
+ 1575 errors, 24069 warnings, 0 notes

pytest (https://github.com/pytest-dev/pytest)
-   /tmp/mypy_primer/projects/pytest/src/_pytest/python.py:339:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Node (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/pytest/src/_pytest/warning_types.py:47:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/pytest/src/_pytest/warning_types.py:60:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
- 1159 errors, 17280 warnings, 0 notes
+ 1156 errors, 17280 warnings, 0 notes

pyodide (https://github.com/pyodide/pyodide)
-   /tmp/mypy_primer/projects/pyodide/src/py/_pyodide/_core_docs.py:94:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: type (reportUnsafeMultipleInheritance)
- 959 errors, 9996 warnings, 0 notes
+ 958 errors, 9996 warnings, 0 notes

ibis (https://github.com/ibis-project/ibis)
-   /tmp/mypy_primer/projects/ibis/ibis/common/exceptions.py:64:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/common/exceptions.py:68:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/common/exceptions.py:72:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/common/temporal.py:20:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: type (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/arrays.py:1349:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/arrays.py:1354:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/binary.py:36:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/binary.py:41:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/collections.py:14:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/collections.py:19:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/generic.py:2813:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/generic.py:2818:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1625:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1630:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1671:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1676:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1686:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1691:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1701:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1706:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1716:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1721:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1731:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1736:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1746:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/geospatial.py:1751:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/inet.py:14:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/inet.py:19:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/inet.py:29:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/inet.py:34:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/json.py:500:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/json.py:505:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/logical.py:244:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/logical.py:249:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/maps.py:431:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/maps.py:436:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/numeric.py:765:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/numeric.py:770:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/ibis/ibis/expr/types/numeric.py:1634:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Expr (reportUnsafeMultipleInheritance)

... (truncated 21 lines) ...

sympy (https://github.com/sympy/sympy)
- /tmp/mypy_primer/projects/sympy/sympy/matrices/exceptions.py
-   /tmp/mypy_primer/projects/sympy/sympy/matrices/exceptions.py:10:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/matrices/exceptions.py:19:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/matrices/exceptions.py:24:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/algebraicfield.py:16:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain, Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/complexfield.py:17:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain, Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/expressiondomain.py:16:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain, Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/expressionrawdomain.py:13:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain, Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/finitefield.py:110:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/fractionfield.py:10:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/integerring.py:21:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain, Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/old_fractionfield.py:12:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/old_polynomialring.py:18:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/polynomialring.py:11:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/rationalfield.py:15:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain, Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/polys/domains/realfield.py:55:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Domain, Domain (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/printing/lambdarepr.py:228:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: AbstractPythonCodePrinter (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/printing/python.py:10:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Printer (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/ode/single.py:1685:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: SingleODESolver (reportUnsafeMultipleInheritance)
-     Type of "sol1" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
+     Type of "sol1" is "Equality | Unknown" (reportUnknownVariableType)
-     Type of "sol3" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
+     Type of "sol3" is "Equality | Unknown" (reportUnknownVariableType)
-     Type of "eqn" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
+     Type of "eqn" is "Equality | Unknown" (reportUnknownVariableType)
-     Type of "sol" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
+     Type of "sol" is "Equality | Unknown" (reportUnknownVariableType)
-     Type of "sol" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
+     Type of "sol" is "Equality | Unknown" (reportUnknownVariableType)
-     Type of "eqs" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eqs" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality, Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality, Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality, Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality, Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality, Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality, Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality, Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality, Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "sol" is "list[Equality | Unknown]" (reportUnknownVariableType)
-     Type of "eq" is "tuple[Equality | Unknown | Relational | Unequality, Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
+     Type of "eq" is "tuple[Equality | Unknown, Equality | Unknown]" (reportUnknownVariableType)
-     Type of "sol" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)

... (truncated 4471 lines) ...

scikit-learn (https://github.com/scikit-learn/scikit-learn)
-   /tmp/mypy_primer/projects/scikit-learn/sklearn/utils/_param_validation.py:20:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
- 16995 errors, 197986 warnings, 0 notes
+ 16994 errors, 197986 warnings, 0 notes

mongo-python-driver (https://github.com/mongodb/mongo-python-driver)
-   /tmp/mypy_primer/projects/mongo-python-driver/test/test_discovery_and_monitoring.py:316:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseListener (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/mongo-python-driver/test/test_encryption.py:405:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: TestCase (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/mongo-python-driver/test/test_encryption.py:1548:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: TestCase (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/mongo-python-driver/test/test_encryption.py:1573:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: TestCase (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/mongo-python-driver/test/asynchronous/test_encryption.py:405:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: TestCase (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/mongo-python-driver/test/asynchronous/test_encryption.py:1554:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: TestCase (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/mongo-python-driver/test/asynchronous/test_encryption.py:1579:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: TestCase (reportUnsafeMultipleInheritance)
- 4087 errors, 51967 warnings, 0 notes
+ 4080 errors, 51967 warnings, 0 notes

bokeh (https://github.com/bokeh/bokeh)
-   /tmp/mypy_primer/projects/bokeh/tests/unit/bokeh/core/test_properties.py:257:15 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: HasProps (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/bokeh/tests/unit/bokeh/core/test_properties.py:318:15 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: HasProps (reportUnsafeMultipleInheritance)
- 3953 errors, 29694 warnings, 0 notes
+ 3951 errors, 29694 warnings, 0 notes

kopf (https://github.com/nolar/kopf)
-   /tmp/mypy_primer/projects/kopf/kopf/_core/actions/loggers.py:39:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Formatter (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/kopf/kopf/_core/actions/loggers.py:92:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Formatter (reportUnsafeMultipleInheritance)
- 1220 errors, 23375 warnings, 0 notes
+ 1218 errors, 23375 warnings, 0 notes

aioredis (https://github.com/aio-libs/aioredis)
-   /tmp/mypy_primer/projects/aioredis/aioredis/exceptions.py:14:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException, BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/aioredis/aioredis/exceptions.py:66:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
- 333 errors, 2678 warnings, 0 notes
+ 331 errors, 2678 warnings, 0 notes

pylint (https://github.com/pycqa/pylint)
-   /tmp/mypy_primer/projects/pylint/pylint/checkers/format.py:147:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseChecker (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/pylint/pylint/checkers/imports.py:326:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseChecker (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/pylint/pylint/checkers/misc.py:53:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseChecker (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/pylint/pylint/checkers/stdlib.py:460:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseChecker (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/pylint/pylint/checkers/strings.py:639:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseChecker (reportUnsafeMultipleInheritance)
- 307 errors, 14916 warnings, 0 notes
+ 302 errors, 14916 warnings, 0 notes

prefect (https://github.com/PrefectHQ/prefect)
-   /tmp/mypy_primer/projects/prefect/src/integrations/prefect-aws/prefect_aws/s3.py:775:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Block, Block (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/prefect/src/integrations/prefect-azure/prefect_azure/blob_storage.py:193:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Block, Block (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/prefect/src/integrations/prefect-gcp/prefect_gcp/cloud_storage.py:559:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Block, Block (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/prefect/src/integrations/prefect-sqlalchemy/prefect_sqlalchemy/database.py:35:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: Block (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/prefect/src/prefect/exceptions.py:189:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)
-   /tmp/mypy_primer/projects/prefect/src/prefect/exceptions.py:210:7 - error: Multiple inheritance is not allowed because the following base classes contain `__init__` or `__new__` methods that may not get called: BaseException (reportUnsafeMultipleInheritance)

... (truncated 265 lines) ...```