non-compounds may be done

tests/test_parser.py

@@ -615,6 +615,18 @@ def test_yield_x_y():
 def test_yield_from_x():
     yield check_stmts, 'yield from x', False
 
+def test_return():
+    yield check_stmts, 'return', False
+
+def test_return_x():
+    yield check_stmts, 'return x', False
+
+def test_return_x_comma():
+    yield check_stmts, 'return x,', False
+
+def test_return_x_y():
+    yield check_stmts, 'return x, y', False
+
 
 
 

xonsh/ast.py

@@ -7,4 +7,4 @@ from ast import Module, Num, Expr, Str, Bytes, UnaryOp, UAdd, USub, Invert, \
     Name, GeneratorExp, Store, comprehension, ListComp, SetComp, DictComp, \
     Assign, AugAssign, BitXor, BitAnd, BitOr, LShift, RShift, Assert, Delete, \
     Del, Pass, Raise, Import, alias, ImportFrom, Continue, Break, Yield, \
-    YieldFrom
+    YieldFrom, Return

xonsh/parser.py

@@ -551,7 +551,7 @@ class Parser(object):
 
     def p_return_stmt(self, p):
         """return_stmt : RETURN testlist_opt"""
-        p[0] = p[1:]
+        p[0] = ast.Return(value=p[2], lineno=self.lineno, col_offset=self.col)
 
     def p_yield_stmt(self, p):
         """yield_stmt : yield_expr"""
@@ -1331,7 +1331,7 @@ class Parser(object):
         """encoding_decl : NAME"""
         # not used in grammar, but may appear in "node" passed from 
         # Parser to Compiler
-        p[0] = p[1:]
+        p[0] = p[1]
 
     def p_yield_expr(self, p):
         """yield_expr : YIELD yield_arg_opt"""