From a45ec10b7ae86c05a56e8f7ad89ed018f46e2989 Mon Sep 17 00:00:00 2001
From: Alexander Whitestone <alexander@alexanderwhitestone.com>
Date: Tue, 21 Apr 2026 11:23:59 +0000
Subject: [PATCH] fix(#211): Fix two SyntaxErrors in perf_bottleneck_finder.py

- Line 116: Fixed quote escaping in open() regex pattern
- Lines 509-510: Fixed split string literal in return statement
- Verified: python3 -m py_compile succeeds
---
 scripts/perf_bottleneck_finder.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scripts/perf_bottleneck_finder.py b/scripts/perf_bottleneck_finder.py
index 82db21a..89631e6 100644
--- a/scripts/perf_bottleneck_finder.py
+++ b/scripts/perf_bottleneck_finder.py
@@ -113,7 +113,7 @@ def find_slow_tests_by_scan(repo_path: str) -> List[Bottleneck]:
         (r"time\.sleep\((\d+(?:\.\d+)?)\)", "Contains time.sleep() — consider using mock or async wait"),
         (r"subprocess\.run\(.*timeout=(\d+)", "Subprocess with timeout — may block test"),
         (r"requests\.(get|post|put|delete)\(", "Real HTTP call — mock with responses or httpretty"),
-        (r"open\([^)]*['\"]w['\"]", "File I/O in test - use tmp_path fixture"),
+        (r"open\\([^)]*['\"]w['\"]", "File I/O in test - use tmp_path fixture"),
     ]
 
     for root, dirs, files in os.walk(repo_path):
@@ -506,8 +506,8 @@ def format_markdown(report: PerfReport) -> str:
                 lines.append(f"- {icon} {b.name}{loc} — ~{b.duration_s:.1f}s — {b.recommendation}")
             lines.append(f"")
 
-    return "
-".join(lines)
+    return "\n".join(lines)
+
 
 
 # ── Main ───────────────────────────────────────────────────────────