Patch #1638243: the compiler package is now able to correctly compile
a with statement; previously, executing code containing a with statement
compiled by the compiler package crashed the interpreter.
diff --git a/Lib/compiler/transformer.py b/Lib/compiler/transformer.py
index a16dc55..ac23ad1 100644
--- a/Lib/compiler/transformer.py
+++ b/Lib/compiler/transformer.py
@@ -960,7 +960,7 @@
         if nodelist[2][0] == token.COLON:
             var = None
         else:
-            var = self.com_node(nodelist[2])
+            var = self.com_assign(nodelist[2][2], OP_ASSIGN)
         return With(expr, var, body, lineno=nodelist[0][2])
 
     def com_with_var(self, nodelist):