dtoc: Convert the Fdt.Node class to Python 3
Update this class to work correctly on Python 3 and to pass its unit
tests. The only required change is to deal with a difference in the
behaviour of sorting with a None value.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/dtoc/fdt.py b/tools/dtoc/fdt.py
index 2b2470c..d9471c4 100644
--- a/tools/dtoc/fdt.py
+++ b/tools/dtoc/fdt.py
@@ -465,8 +465,11 @@
# Sync properties now, whose offsets should not have been disturbed.
# We do this after subnodes, since this disturbs the offsets of these
- # properties.
- prop_list = sorted(self.props.values(), key=lambda prop: prop._offset,
+ # properties. Note that new properties will have an offset of None here,
+ # which Python 3 cannot sort against int. So use a large value instead
+ # to ensure that the new properties are added first.
+ prop_list = sorted(self.props.values(),
+ key=lambda prop: prop._offset or 1 << 31,
reverse=True)
for prop in prop_list:
prop.Sync(auto_resize)