It is better to use the 'is' keyword instead of comparing to None
according to Ruff.

This is linked to Ruff error E711 [1]:

  According to PEP 8, "Comparisons to singletons like None should always
  be done with is or is not, never the equality operators."

Link: https://docs.astral.sh/ruff/rules/none-comparison/ [1]
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
---
 tools/net/ynl/pyynl/lib/ynl.py   | 2 +-
 tools/net/ynl/pyynl/ynl_gen_c.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/net/ynl/pyynl/lib/ynl.py b/tools/net/ynl/pyynl/lib/ynl.py
index 1e06f79beb573d2c3ccbcf137438ae2f208f56ec..50805e05020aa65edf86fa6ac5156f1c87244a08 100644
--- a/tools/net/ynl/pyynl/lib/ynl.py
+++ b/tools/net/ynl/pyynl/lib/ynl.py
@@ -705,7 +705,7 @@ class YnlFamily(SpecFamily):
             return attr.as_bin()
 
     def _rsp_add(self, rsp, name, is_multi, decoded):
-        if is_multi == None:
+        if is_multi is None:
             if name in rsp and type(rsp[name]) is not list:
                 rsp[name] = [rsp[name]]
                 is_multi = True
diff --git a/tools/net/ynl/pyynl/ynl_gen_c.py b/tools/net/ynl/pyynl/ynl_gen_c.py
index 5113cf1787f608125e23fa9033d9db81caf51f49..c7fb8abfd65e5d7bdd0ee705aed65f9262431880 100755
--- a/tools/net/ynl/pyynl/ynl_gen_c.py
+++ b/tools/net/ynl/pyynl/ynl_gen_c.py
@@ -397,7 +397,7 @@ class TypeScalar(Type):
         if 'enum' in self.attr:
             enum = self.family.consts[self.attr['enum']]
             low, high = enum.value_range()
-            if low == None and high == None:
+            if low is None and high is None:
                 self.checks['sparse'] = True
             else:
                 if 'min' not in self.checks:

-- 
2.51.0