code quality fixes

python_repositories/adapters/redis_adapter.py

@@ -1,7 +1,8 @@
 """Definition of RedisAdapter class."""
 
 from __future__ import annotations
-from typing import cast, TYPE_CHECKING
+from typing import cast
+from importlib.util import find_spec
 import os
 import structlog
 
@@ -12,10 +13,13 @@ from python_repositories.interfaces import (
     ConnectionAwareInterface,
 )
 
-# Import for mypy type checking only
-if TYPE_CHECKING:
+# Handle optional dependencies
+if find_spec("redis") is not None:
     import redis
     from redis.commands.json.path import Path as RedisPath
+else:
+    redis = None  # type: ignore
+    RedisPath = None  # type: ignore
 
 
 class RedisAdapter(
@@ -25,16 +29,10 @@ class RedisAdapter(
     """Redis adapter exposing basic CRUD functionality."""
 
     uri_env_var_name: str = "REDIS_URI"
-    path: str = RedisPath.root_path()
+    path: str = "."  # JSON root path, updated in __init__
     encoding: str = "UTF-8"
 
     def __init__(self) -> None:
-        # Import here to avoid hard dependency to optional package
-        try:
-            import redis
-            from redis.commands.json.path import Path as RedisPath
-        except ImportError as e:
-            raise RuntimeError("RedisAdapter dependencies missing") from e
         # Setup logger
         self.logger = structlog.get_logger(
             self.__class__.__name__,
@@ -43,6 +41,7 @@ class RedisAdapter(
         check_env(self.uri_env_var_name)
         # Prepare internal variables
         self._client: redis.Redis | None = None
+        self.path: str = RedisPath.root_path()
 
     def __enter__(self) -> RedisAdapter:
         """Enter the context."""