From cb15f9c1bd4783a13d8a4e522a75398b1c9084ca Mon Sep 17 00:00:00 2001
From: biefan <70761325+biefan@users.noreply.github.com>
Date: Mon, 16 Mar 2026 20:49:18 +0000
Subject: [PATCH] ignore blank lines when reading JSONL

---
 pyrit/common/json_helper.py           |  2 +-
 tests/unit/common/test_json_helper.py | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 tests/unit/common/test_json_helper.py

diff --git a/pyrit/common/json_helper.py b/pyrit/common/json_helper.py
index 17b49335de..cbb0575e5a 100644
--- a/pyrit/common/json_helper.py
+++ b/pyrit/common/json_helper.py
@@ -33,7 +33,7 @@ def read_jsonl(file: IO[Any]) -> list[dict[str, str]]:
     Returns:
         List[Dict[str, str]]: Parsed JSONL content.
     """
-    return [json.loads(line) for line in file]
+    return [json.loads(line) for line in file if line.strip()]
 
 
 def write_jsonl(file: IO[Any], examples: list[dict[str, str]]) -> None:
diff --git a/tests/unit/common/test_json_helper.py b/tests/unit/common/test_json_helper.py
new file mode 100644
index 0000000000..4e8dddc765
--- /dev/null
+++ b/tests/unit/common/test_json_helper.py
@@ -0,0 +1,14 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
+from io import StringIO
+
+from pyrit.common.json_helper import read_jsonl
+
+
+def test_read_jsonl_ignores_blank_lines():
+    file = StringIO('{"prompt": "first"}\n\n{"prompt": "second"}\n')
+
+    result = read_jsonl(file)
+
+    assert result == [{"prompt": "first"}, {"prompt": "second"}]