From e5929e89d6162884bd7e4eb8b6d2f4e8c709efff Mon Sep 17 00:00:00 2001
From: alexander-beedie <alexander.m.beedie@icloud.com>
Date: Sun, 22 Oct 2023 03:07:05 +0400
Subject: [PATCH] fix 'True' fast-path

---
 py-polars/polars/lazyframe/frame.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/py-polars/polars/lazyframe/frame.py b/py-polars/polars/lazyframe/frame.py
index fb2d5cca6211..aa27c5c19a55 100644
--- a/py-polars/polars/lazyframe/frame.py
+++ b/py-polars/polars/lazyframe/frame.py
@@ -2653,7 +2653,7 @@ def filter(
         boolean_masks = []
 
         # no-op; immediately matches all rows
-        if predicates == (True,) and not constraints:
+        if len(predicates) == 1 and predicates[0] is True and not constraints:
             return self.clone()
 
         # note: identify masks separately from predicates