first sorry about that, indeed I don't know how to commit a patch, so
just paste the diff result here.

diff --git a/oe-init-build-env b/oe-init-build-env
index 77332a7..0da8bc0 100755
--- a/oe-init-build-env
+++ b/oe-init-build-env
@@ -39,6 +39,20 @@ else
$OEROOT/scripts/oe-setup-builddir
unset OEROOT
unset BBPATH
+
+ # find the python version 2.x
+ # the 'python -V' need redirect to stdout
+ # precondition:
+ # $BUILDDIR is not NULL, but I doubt when it will be NULL.
+ # user have not made the file $BUILDDIR/python by himself.
+ for PY_BIN in `find /{usr/,}bin -regex '.*/python\(\|2\|2\.[0-9]*
\)'`; do
+ if [ -n "`$PY_BIN -V 2>&1|grep '^Python 2\.'`" ]; then
+ ln -sf $PY_BIN $BUILDDIR/python
+ export PATH="$BUILDDIR:$PATH"
+ break
+ fi
+ done
+
[ -n "$BUILDDIR" ] && cd $BUILDDIR
fi

--
倪庆亮
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