In superclass __enter__ method is defined with return value type hint 'QEMUMachine'. So, mypy thinks that return value of VM.__enter__ is QEMUMachine. Let's redefine __enter__ in VM class, to give it correct type hint.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> Reviewed-by: Max Reitz <mre...@redhat.com> --- tests/qemu-iotests/iotests.py | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py index 89663dac06..025e288ddd 100644 --- a/tests/qemu-iotests/iotests.py +++ b/tests/qemu-iotests/iotests.py @@ -568,6 +568,10 @@ def remote_filename(path): class VM(qtest.QEMUQtestMachine): '''A QEMU VM''' + # Redefine __enter__ with proper type hint + def __enter__(self) -> 'VM': + return self + def __init__(self, path_suffix=''): name = "qemu%s-%d" % (path_suffix, os.getpid()) super().__init__(qemu_prog, qemu_opts, name=name, -- 2.29.2