Update app.py

app.py

@@ -10,12 +10,7 @@ from langchain_experimental.tools import PythonREPLTool
 from langchain_community.tools.youtube.search import YouTubeSearchTool
 from langchain_community.tools.tavily_search import TavilySearchResults
 
-# Playwright-selain-työkalut
-from langchain_community.tools.playwright.utils import create_sync_playwright_browser
-from langchain_community.agent_toolkits.playwright.toolkit import PlayWrightBrowserToolkit
-
-# Tiedostohallinnan työkalut
-from langchain_community.agent_toolkits.file_management.toolkit import FileManagementToolkit
+# (Optional) Tiedostohallinnan työkalut
 
 # LLM
 from langchain_openai import ChatOpenAI
@@ -51,11 +46,26 @@ If you are asked for a comma separated list, apply the above rules depending on
         YouTubeSearchTool(),
     ]
 
-    # 3. Lisätään selain- ja tiedosto-työkalut PlayWright- ja FileManagement-toolkiteista
-    sync_browser = create_sync_playwright_browser()
-    browser_toolkit = PlayWrightBrowserToolkit.from_browser(sync_browser=sync_browser)
-    tools.extend(browser_toolkit.get_tools())
-    file_toolkit = FileManagementToolkit(root_dir=".")
+    # 3. Lisätään valinnaiset Playwright-selain- ja tiedostotyökalut
+    # Playwright: yritetään lisätä, jos riippuvuus saatavilla ja selaimet asennettu
+    try:
+        from langchain_community.tools.playwright.utils import create_sync_playwright_browser
+        from langchain_community.agent_toolkits.playwright.toolkit import PlayWrightBrowserToolkit
+
+        sync_browser = create_sync_playwright_browser()
+        browser_toolkit = PlayWrightBrowserToolkit.from_browser(sync_browser=sync_browser)
+        tools.extend(browser_toolkit.get_tools())
+        print("Playwright tools loaded.")
+    except Exception as e:
+        print("Playwright not available, skipping browser tools:", e)
+
+    # FileManagementToolkit on kevyt, voidaan lisätä suoraan
+    try:
+        from langchain_community.agent_toolkits.file_management.toolkit import FileManagementToolkit
+        file_toolkit = FileManagementToolkit(root_dir=".")
+        tools.extend(file_toolkit.get_tools())
+    except Exception as e:
+        print("FileManagement toolkit unavailable:", e) = FileManagementToolkit(root_dir=".")
     tools.extend(file_toolkit.get_tools())
 
     llm_with_tools = llm.bind_tools(tools)