From 1396d8fab4d0ae830d45f4937322bbb43ce0c30e Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@redhat.com>
Date: Fri, 25 Jan 2019 01:49:53 +0100
Subject: [PATCH] bpo-35224: Add support for NamedExpr to unparse.py (GH-11670)

---
 Tools/parser/unparse.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Tools/parser/unparse.py b/Tools/parser/unparse.py
index 82c3c776807..70b47a17405 100644
--- a/Tools/parser/unparse.py
+++ b/Tools/parser/unparse.py
@@ -79,6 +79,13 @@ def _Expr(self, tree):
         self.fill()
         self.dispatch(tree.value)
 
+    def _NamedExpr(self, tree):
+        self.write("(")
+        self.dispatch(tree.target)
+        self.write(" := ")
+        self.dispatch(tree.value)
+        self.write(")")
+
     def _Import(self, t):
         self.fill("import ")
         interleave(lambda: self.write(", "), self.dispatch, t.names)