[Bug]: Mypy stubtest failure on disjoint_base #30551
Description
Bug summary
The recently released MyPy 18.1 supports PEP 800 – Disjoint bases in the type system. stubtest now flags the following errors in CI (e.g. in 0a744f0)
Actual outcome
matplotlib.dviread.Text is a disjoint base at runtime, but isn't marked with @disjoint_base in the stub
<TypeInfo matplotlib.dviread.Text>
Runtime: in file /home/runner/work/matplotlib/matplotlib/lib/matplotlib/dviread.py:69
def (x, y, font, glyph, width)
Raw Output:
error: matplotlib.dviread.Text is a disjoint base at runtime, but isn't marked with @disjoint_base in the stub
Stub: in file /home/runner/work/matplotlib/matplotlib/lib/matplotlib/dviread.pyi:31
<TypeInfo matplotlib.dviread.Text>
Runtime: in file /home/runner/work/matplotlib/matplotlib/lib/matplotlib/dviread.py:69
def (x, y, font, glyph, width)
matplotlib.container.Container is a disjoint base at runtime, but isn't marked with @disjoint_base in the stub
<TypeInfo matplotlib.container.Container>
Runtime: in file /home/runner/work/matplotlib/matplotlib/lib/matplotlib/container.py:5
def (*args, **kwargs)
Raw Output:
error: matplotlib.container.Container is a disjoint base at runtime, but isn't marked with @disjoint_base in the stub
Stub: in file /home/runner/work/matplotlib/matplotlib/lib/matplotlib/container.pyi:10
<TypeInfo matplotlib.container.Container>
Runtime: in file /home/runner/work/matplotlib/matplotlib/lib/matplotlib/container.py:5
def (*args, **kwargs)
Expected outcome
No error.