graphlit
diff --git a/‎graphlit_tools/crewai_converter.py‎
Lines changed: 55 additions & 48 deletions b/‎graphlit_tools/crewai_converter.py‎
Lines changed: 55 additions & 48 deletions
@@ -1,52 +1,59 @@
 from typing import Any, cast
-
-try:
-    from crewai_tools.tools.base_tool import BaseTool as CrewAIBaseTool
-except ImportError as e:
-    raise ImportError(
-        "CrewAIConverter requires the `crewai_tools` package. "
-        "Install it using `pip install graphlit-tools[crewai]`."
-    ) from e
-
 from .base_tool import BaseTool
 
-class CrewAIConverter(CrewAIBaseTool):
-    """Tool to convert Graphlit tools into CrewAI tools."""
-
-    graphlit_tool: Any
-
-    def _run(
-        self,
-        *args: Any,
-        **kwargs: Any,
-    ) -> Any:
-        tool = cast(BaseTool, self.graphlit_tool)
-
-        return tool.run(*args, **kwargs)
+CrewAIBaseTool: Any = None
 
-    async def _arun(
-        self,
-        *args: Any,
-        **kwargs: Any,
-    ) -> Any:
-        tool = cast(BaseTool, self.graphlit_tool)
-
-        return await tool.arun(*args, **kwargs)
-
-    @classmethod
-    def from_tool(cls, tool: Any, **kwargs: Any) -> "CrewAIConverter":
-        if not isinstance(tool, BaseTool):
-            raise ValueError(f"Expected a Graphlit tool, got {type(tool)}")
-
-        tool = cast(BaseTool, tool)
-
-        if tool.args_schema is None:
-            raise ValueError("Invalid arguments JSON schema.")
-
-        return cls(
-            name=tool.name,
-            description=tool.description,
-            args_schema=tool.args_schema,
-            graphlit_tool=tool,
-            **kwargs,
-        )
+try:
+    from crewai_tools.tools.base_tool import BaseTool as CrewAIBaseTool
+except ImportError:
+    CrewAIBaseTool = None
+
+if CrewAIBaseTool:
+    class CrewAIConverter(CrewAIBaseTool):
+        """Tool to convert Graphlit tools into CrewAI tools."""
+
+        graphlit_tool: Any
+
+        def _run(
+            self,
+            *args: Any,
+            **kwargs: Any,
+        ) -> Any:
+            tool = cast(BaseTool, self.graphlit_tool)
+
+            return tool.run(*args, **kwargs)
+
+        async def _arun(
+            self,
+            *args: Any,
+            **kwargs: Any,
+        ) -> Any:
+            tool = cast(BaseTool, self.graphlit_tool)
+
+            return await tool.arun(*args, **kwargs)
+
+        @classmethod
+        def from_tool(cls, tool: Any, **kwargs: Any) -> "CrewAIConverter":
+            if not isinstance(tool, BaseTool):
+                raise ValueError(f"Expected a Graphlit tool, got {type(tool)}")
+
+            tool = cast(BaseTool, tool)
+
+            if tool.args_schema is None:
+                raise ValueError("Invalid arguments JSON schema.")
+
+            return cls(
+                name=tool.name,
+                description=tool.description,
+                args_schema=tool.args_schema,
+                graphlit_tool=tool,
+                **kwargs,
+            )
+else:
+    class CrewAIConverter:
+        """Fallback CrewAIConverter if crewai_tools is not installed."""
+        def __init__(self, *args, **kwargs):
+            raise ImportError(
+                "CrewAIConverter requires the crewai_tools package. "
+                "Install it using pip install graphlit-tools[crewai]."
+            )