diff --git a/py/expression/expression.py b/py/expression/expression.py
index e5c96be..d4ff4ae 100644
--- a/py/expression/expression.py
+++ b/py/expression/expression.py
@@ -97,6 +97,11 @@ class Expression:
 
     @classmethod
     def tokenize(cls, s):
+        s = "\n".join(
+            line.rstrip("\r")
+            for line in s.split("\n")
+            if not line.lstrip().startswith("#")
+        )
         yield from (cls.fixup_token(m.group(1)) for m in cls.EXPR_RE.finditer(s))
 
 
diff --git a/py/expression_handlers.py b/py/expression_handlers.py
index 6b38388..1ed9541 100644
--- a/py/expression_handlers.py
+++ b/py/expression_handlers.py
@@ -159,7 +159,6 @@ class NewLikeHandler(NormHandler):
 
     def handle(self, obj, getter):
         tensor, values = self.safe_get_all(obj, getter)
-        print(f"\nNEW TENSOR: {values}")
         return torch.tensor(values, dtype=tensor.dtype, device=tensor.device)