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[PATCH for-4.21] libxl: make gentypes.py compatible with Python older than 3.9
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 16 Oct 2025 13:22:30 +0200
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- Cc: Anthony PERARD <anthony.perard@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
- Delivery-date: Thu, 16 Oct 2025 11:22:46 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
removeprefix() was added only in 3.9. As long as the "jso_sub_" prefix is
always going to be there anyway, switch to a less specific but more
compatible construct.
Fixes: f6c6f2679d49 ("libxl: libxl__object_to_json() to json-c")
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
---
Sadly this is only the tip of the iceberg. Some minimum version of the
json-c library is apparently needed for the toolstack to build, but no
minimum version is being checked for.
--- a/tools/libs/light/gentypes.py
+++ b/tools/libs/light/gentypes.py
@@ -384,7 +384,7 @@ def libxl_C_type_gen_jso(ty, v, indent =
s += "int rc;\n"
sub_scope_object = "jso_sub_1"
else:
- sub_scope_object = "jso_sub_%d" %
(1+int(scope_object.removeprefix("jso_sub_")))
+ sub_scope_object = "jso_sub_%d" % (1+int(scope_object[8:]))
if isinstance(ty, idl.Array):
if parent is None:
|
