Fix CodeRabbit critical issues in examples

- Change absolute imports to relative imports in all __init__.py files
- Fix security issue: log encryption key fingerprints instead of actual keys
- Add pytest asyncio configuration (asyncio_mode = auto) to all examples
- Constrain pydantic to <3.0.0 in all examples

Co-authored-by: William Easton <strawgate@users.noreply.github.com>

Author: github-actions[bot]

examples/chat_app/__init__.py

@@ -1,5 +1,5 @@
 """Chat app example for py-key-value."""
 
-from chat_app import ChatApp, ChatMessage
+from .chat_app import ChatApp, ChatMessage
 
 __all__ = ["ChatApp", "ChatMessage"]

examples/chat_app/pyproject.toml

@@ -5,7 +5,7 @@ description = "Simple async chat application using py-key-value"
 requires-python = ">=3.10"
 dependencies = [
     "py-key-value-aio>=0.2.8",
-    "pydantic>=2.0.0",
+    "pydantic>=2.0.0,<3.0.0",
 ]
 
 [project.optional-dependencies]
@@ -14,6 +14,9 @@ dev = [
     "pytest-asyncio>=1.2.0",
 ]
 
+[tool.pytest.ini_options]
+asyncio_mode = "auto"
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"

examples/chat_app/requirements.txt

@@ -1,2 +1,2 @@
 py-key-value-aio>=0.2.8
-pydantic>=2.0.0
+pydantic>=2.0.0,<3.0.0

examples/trading_data/__init__.py

@@ -1,5 +1,5 @@
 """Trading data cache example for py-key-value."""
 
-from trading_app import PriceData, TradingDataCache
+from .trading_app import PriceData, TradingDataCache
 
 __all__ = ["PriceData", "TradingDataCache"]

examples/trading_data/pyproject.toml

@@ -5,7 +5,7 @@ description = "Trading data caching using py-key-value with compression and mult
 requires-python = ">=3.10"
 dependencies = [
     "py-key-value-aio>=0.2.8",
-    "pydantic>=2.0.0",
+    "pydantic>=2.0.0,<3.0.0",
 ]
 
 [project.optional-dependencies]
@@ -14,6 +14,9 @@ dev = [
     "pytest-asyncio>=1.2.0",
 ]
 
+[tool.pytest.ini_options]
+asyncio_mode = "auto"
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"

examples/trading_data/requirements.txt

@@ -1,2 +1,2 @@
 py-key-value-aio>=0.2.8
-pydantic>=2.0.0
+pydantic>=2.0.0,<3.0.0

examples/web_scraper_cache/__init__.py

@@ -1,5 +1,5 @@
 """Web scraper cache example for py-key-value."""
 
-from scraper import ScrapedPage, WebScraperCache
+from .scraper import ScrapedPage, WebScraperCache
 
 __all__ = ["ScrapedPage", "WebScraperCache"]

examples/web_scraper_cache/pyproject.toml

@@ -5,7 +5,7 @@ description = "Web scraper cache using py-key-value with encryption and size lim
 requires-python = ">=3.10"
 dependencies = [
     "py-key-value-aio>=0.2.8",
-    "pydantic>=2.0.0",
+    "pydantic>=2.0.0,<3.0.0",
     "cryptography>=41.0.0",
 ]
 
@@ -15,6 +15,9 @@ dev = [
     "pytest-asyncio>=1.2.0",
 ]
 
+[tool.pytest.ini_options]
+asyncio_mode = "auto"
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"

examples/web_scraper_cache/requirements.txt

@@ -1,3 +1,3 @@
 py-key-value-aio>=0.2.8
-pydantic>=2.0.0
+pydantic>=2.0.0,<3.0.0
 cryptography>=41.0.0

examples/web_scraper_cache/scraper.py

@@ -54,7 +54,9 @@ def __init__(self, cache_dir: str = ".scraper_cache", encryption_key: bytes | No
         # Generate or use provided encryption key
         if encryption_key is None:
             encryption_key = Fernet.generate_key()
-            logger.warning(f"Generated new encryption key: {encryption_key.decode()}")
+            # Generate a safe fingerprint for identification (never log the actual key!)
+            key_fingerprint = hashlib.sha256(encryption_key).hexdigest()[:16]
+            logger.warning(f"Generated new encryption key (fingerprint: {key_fingerprint})")
             logger.warning("Store this key securely! Data encrypted with different keys cannot be decrypted.")
 
         self.encryption_key = encryption_key
@@ -199,7 +201,9 @@ async def main():
     """Demonstrate the web scraper cache."""
     # Generate a key for this demo (in production, load from secure storage)
     encryption_key = Fernet.generate_key()
-    print(f"Using encryption key: {encryption_key.decode()}\n")
+    # Only show fingerprint, never the actual key
+    key_fingerprint = hashlib.sha256(encryption_key).hexdigest()[:16]
+    print(f"Using encryption key (fingerprint: {key_fingerprint})\n")
 
     cache = WebScraperCache(cache_dir=".demo_scraper_cache", encryption_key=encryption_key)