On 15. 07. 25 12:51, Richard W.M. Jones wrote:
In Python 3.14, no asyncio event loop gets generated automatically.
Instead create one when we need it.  This should work with Python 3.13
as well.  This is a mechanical change as suggested here:

https://bugzilla.redhat.com/show_bug.cgi?id=2375004#c4

See-also: https://docs.python.org/3.14/whatsnew/3.14.html#id7
Thanks: Miro Hrončok
Signed-off-by: Richard W.M. Jones <rjo...@redhat.com>
---
  python/qemu/qmp/legacy.py  | 5 ++++-
  python/qemu/qmp/qmp_tui.py | 5 ++++-
  python/qemu/qmp/util.py    | 5 ++++-
  python/tests/protocol.py   | 5 ++++-
  4 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/python/qemu/qmp/legacy.py b/python/qemu/qmp/legacy.py
index 22a2b5616e..e11d05afbd 100644
--- a/python/qemu/qmp/legacy.py
+++ b/python/qemu/qmp/legacy.py
@@ -86,7 +86,10 @@ def __init__(self,
                  "server argument should be False when passing a socket")
self._qmp = QMPClient(nickname)
-        self._aloop = asyncio.get_event_loop()
+        try:
+            self._aloop = asyncio.get_event_loop()
+        except RuntimeError:
+            self._aloop = asyncio.new_event_loop()
          self._address = address
          self._timeout: Optional[float] = None
diff --git a/python/qemu/qmp/qmp_tui.py b/python/qemu/qmp/qmp_tui.py
index 2d9ebbd20b..84c5da4e66 100644
--- a/python/qemu/qmp/qmp_tui.py
+++ b/python/qemu/qmp/qmp_tui.py
@@ -377,7 +377,10 @@ def run(self, debug: bool = False) -> None:
          screen = urwid.raw_display.Screen()
          screen.set_terminal_properties(256)
- self.aloop = asyncio.get_event_loop()
+        try:
+            self.aloop = asyncio.get_event_loop()
+        except RuntimeError:
+            self.aloop = asyncio.new_event_loop()
          self.aloop.set_debug(debug)
# Gracefully handle SIGTERM and SIGINT signals
diff --git a/python/qemu/qmp/util.py b/python/qemu/qmp/util.py
index ca6225e9cd..8f9f849a5f 100644
--- a/python/qemu/qmp/util.py
+++ b/python/qemu/qmp/util.py
@@ -160,7 +160,10 @@ def asyncio_run(coro: Coroutine[Any, Any, T], *, debug: bool 
= False) -> T:
          return asyncio.run(coro, debug=debug)
# Python 3.6
-    loop = asyncio.get_event_loop()
+    try:
+        loop = asyncio.get_event_loop()
+    except RuntimeError:
+        loop = asyncio.new_event_loop()
      loop.set_debug(debug)
      ret = loop.run_until_complete(coro)
      loop.close()

This one particular addition should not be necessary as it only runs on Python 3.6. This code is not reached on Python 3.7+ and hence it is not reached on Python 3.14.

diff --git a/python/tests/protocol.py b/python/tests/protocol.py
index 56c4d441f9..aa7c0e4397 100644
--- a/python/tests/protocol.py
+++ b/python/tests/protocol.py
@@ -228,7 +228,10 @@ def async_test(async_test_method):
          Decorator; adds SetUp and TearDown to async tests.
          """
          async def _wrapper(self, *args, **kwargs):
-            loop = asyncio.get_event_loop()
+            try:
+                loop = asyncio.get_event_loop()
+            except RuntimeError:
+                loop = asyncio.new_event_loop()
              loop.set_debug(True)
await self._asyncSetUp()

--
Miro Hrončok
--
Phone: +420777974800
Fedora Matrix: mhroncok


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