ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

chapter3/log-sanitization/tests/conftest.py

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+"""Shared bootstrap for log-sanitization regression tests."""
+
+import sys
+from pathlib import Path
+from types import ModuleType, SimpleNamespace
+
+
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+if str(PROJECT_ROOT) not in sys.path:
+    sys.path.insert(0, str(PROJECT_ROOT))
+
+try:
+    import ollama  # noqa: F401
+except ImportError:
+    ollama_stub = ModuleType("ollama")
+    ollama_stub.Client = object
+    sys.modules["ollama"] = ollama_stub
+
+try:
+    import dotenv  # noqa: F401
+except ImportError:
+    sys.modules["dotenv"] = SimpleNamespace(load_dotenv=lambda *args, **kwargs: None)