From 15afddf067a7ea5b0ca75428d8f3091faa804a72 Mon Sep 17 00:00:00 2001
From: Marco Gorelli <33491632+MarcoGorelli@users.noreply.github.com>
Date: Tue, 14 Jan 2025 17:27:36 +0400
Subject: [PATCH] fixup

---
 narwhals/dataframe.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/narwhals/dataframe.py b/narwhals/dataframe.py
index 32f117466..8d9d987eb 100644
--- a/narwhals/dataframe.py
+++ b/narwhals/dataframe.py
@@ -3629,9 +3629,8 @@ def _extract_compliant(self, arg: Any) -> Any:
         from narwhals.expr import Expr
         from narwhals.series import Series
 
-        if isinstance(arg, BaseFrame):  # pragma: no cover
-            msg = "Binary operations between LazyFrames are not supported"
-            raise TypeError(msg)
+        if isinstance(arg, BaseFrame):
+            return arg._compliant_frame
         if isinstance(arg, Series):  # pragma: no cover
             msg = "Binary operations between Series and LazyFrame are not supported."
             raise TypeError(msg)