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[PATCH 07/11] python/qmp: Correct type of QMPReturnValue


From: John Snow
Subject: [PATCH 07/11] python/qmp: Correct type of QMPReturnValue
Date: Fri, 4 Jun 2021 11:55:28 -0400

It's only a Dict[str, Any] most of the time. It's not actually
guaranteed to be anything in particular. Fix this type to be
more accurate to the reality we live in.

Signed-off-by: John Snow <jsnow@redhat.com>

---

A note for Vladimir: I'm not using 'object' here yet because it causes a
few regressions in iotests.py type checking that I'm not ready to fix
just yet, but it will eventually happen.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 python/qemu/qmp/__init__.py | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/python/qemu/qmp/__init__.py b/python/qemu/qmp/__init__.py
index 822c793c32..a6e1a7b857 100644
--- a/python/qemu/qmp/__init__.py
+++ b/python/qemu/qmp/__init__.py
@@ -35,14 +35,19 @@
 )
 
 
-# QMPMessage is a QMP Message of any kind.
-# e.g. {'yee': 'haw'}
-#
-# QMPReturnValue is the inner value of return values only.
-# {'return': {}} is the QMPMessage,
-# {} is the QMPReturnValue.
+#: QMPMessage is an entire QMP message of any kind.
 QMPMessage = Dict[str, Any]
-QMPReturnValue = Dict[str, Any]
+
+#: QMPReturnValue is the 'return' value of a command.
+QMPReturnValue = object
+
+# QMPMessage can be outgoing commands or incoming events/returns.
+# QMPReturnValue is usually a dict/json object, but due to QAPI's
+# 'returns-whitelist', it can actually be anything.
+#
+# {'return': {}} is a QMPMessage,
+# {} is the QMPReturnValue.
+
 
 InternetAddrT = Tuple[str, int]
 UnixAddrT = str
@@ -297,8 +302,8 @@ def cmd_obj(self, qmp_cmd: QMPMessage) -> QMPMessage:
         return resp
 
     def cmd(self, name: str,
-            args: Optional[Dict[str, Any]] = None,
-            cmd_id: Optional[Any] = None) -> QMPMessage:
+            args: Optional[Dict[str, object]] = None,
+            cmd_id: Optional[object] = None) -> QMPMessage:
         """
         Build a QMP command and send it to the QMP Monitor.
 
@@ -313,7 +318,7 @@ def cmd(self, name: str,
             qmp_cmd['id'] = cmd_id
         return self.cmd_obj(qmp_cmd)
 
-    def command(self, cmd: str, **kwds: Any) -> QMPReturnValue:
+    def command(self, cmd: str, **kwds: object) -> QMPReturnValue:
         """
         Build and send a QMP command to the monitor, report errors if any
         """
-- 
2.31.1




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