From 36a89c02a9e9e34b1d97bb1077ffe6c724d68409 Mon Sep 17 00:00:00 2001
From: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
Date: Wed, 8 Oct 2025 01:32:13 +0200
Subject: [PATCH] Filter SyntaxWarnings during AST parsing

---
 mypy/fastparse.py | 5 ++++-
 pyproject.toml    | 3 ---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/mypy/fastparse.py b/mypy/fastparse.py
index 6b2eb532003c..aa5c89cd0f41 100644
--- a/mypy/fastparse.py
+++ b/mypy/fastparse.py
@@ -232,9 +232,12 @@ def parse(
         assert options.python_version[0] >= 3
         feature_version = options.python_version[1]
     try:
-        # Disable deprecation warnings about \u
+        # Disable
+        # - deprecation warnings about \u
+        # - syntax warnings for 'invalid escape sequence' (3.12+)  and 'return in finally' (3.14+)
         with warnings.catch_warnings():
             warnings.filterwarnings("ignore", category=DeprecationWarning)
+            warnings.filterwarnings("ignore", category=SyntaxWarning)
             ast = ast3_parse(source, fnam, "exec", feature_version=feature_version)
 
         tree = ASTConverter(
diff --git a/pyproject.toml b/pyproject.toml
index adcca65bf015..96b05ba459b1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -227,9 +227,6 @@ xfail_strict = true
 # Force warnings as errors
 filterwarnings = [
   "error",
-  # Some testcases may contain code that emits SyntaxWarnings, and they are not yet
-  # handled consistently in 3.14 (PEP 765)
-  "default::SyntaxWarning",
 ]
 
 [tool.coverage.run]