bpo-39158: ast.literal_eval() doesn't support empty sets (GH-17742)

1 files changed, 3 insertions, 0 deletions

diff --git a/Lib/ast.py b/Lib/ast.py
index ece8b13..495c0d6 100644
--- a/Lib/ast.py
+++ b/Lib/ast.py
@@ -83,6 +83,9 @@ def literal_eval(node_or_string):
             return list(map(_convert, node.elts))
         elif isinstance(node, Set):
             return set(map(_convert, node.elts))
+        elif (isinstance(node, Call) and isinstance(node.func, Name) and
+              node.func.id == 'set' and node.args == node.keywords == []):
+            return set()
         elif isinstance(node, Dict):
             return dict(zip(map(_convert, node.keys),
                             map(_convert, node.values)))