Update wikipedia_searcher.py

wikipedia_searcher.py

@@ -2,12 +2,24 @@ from langchain_community.tools import WikipediaQueryRun
 from langchain_community.utilities import WikipediaAPIWrapper
 
 class WikipediaSearcher:
-    def __init__(self):
-        # WikipediaAPIWrapper handles the direct Wikipedia API calls
+    """
+    A simple wrapper class to query Wikipedia and retrieve summaries using LangChain's Wikipedia utilities.
+    """
+
+    def __init__(self) -> None:
+        # Initialize the Wikipedia query runner with the API wrapper
         self.wikipedia = WikipediaQueryRun(api_wrapper=WikipediaAPIWrapper())
 
     def search(self, query: str) -> str:
-        # Returns a concise summary or article snippet for the query
+        """
+        Search Wikipedia for a given query and return a summary or snippet.
+
+        Args:
+            query (str): The search query string.
+
+        Returns:
+            str: The Wikipedia summary or an error message.
+        """
         try:
             result = self.wikipedia.run(query)
             return result