bugfix: properly measure the number of args to the lambda

1 files changed, 1 insertions, 1 deletions

diff --git a/interpreter.py b/interpreter.py
index 09f298b..529993a 100644
--- a/interpreter.py
+++ b/interpreter.py
@@ -294,7 +294,7 @@ def interpretRedef(symbol, args, env):
 GLOBALS.register("redef", Builtin(interpretRedef, 2))
 
 def interpretLambda(symbol, args, env):
-    if args[0].args[0] != None:
+    if len(args[0].args) != 0:
         func = UserFunction("<lambda>", args[0].args, args[1:])
     else:
         func = UserFunction("<lambda>", [], args[1:])