diff mbox series

[30/42] python/qmp: return generic type from context manager

Message ID 20210607200649.1840382-31-jsnow@redhat.com (mailing list archive)
State New, archived
Headers show
Series python: move qmp-shell into qemu.qmp package | expand

Commit Message

John Snow June 7, 2021, 8:06 p.m. UTC 
__enter__ can be invoked from a subclass, so it needs a more flexible
type.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 python/qemu/qmp/__init__.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/python/qemu/qmp/__init__.py b/python/qemu/qmp/__init__.py
index ba0d2281d6..376954cb6d 100644
--- a/python/qemu/qmp/__init__.py
+++ b/python/qemu/qmp/__init__.py
@@ -30,6 +30,7 @@ 
     TextIO,
     Tuple,
     Type,
+    TypeVar,
     Union,
     cast,
 )
@@ -220,7 +221,9 @@  def __get_events(self, wait: Union[bool, float] = False) -> None:
             if ret is None:
                 raise QMPConnectError("Error while reading from socket")
 
-    def __enter__(self) -> 'QEMUMonitorProtocol':
+    T = TypeVar('T')
+
+    def __enter__(self: T) -> T:
         # Implement context manager enter function.
         return self