From 1029260dcc9e338c25398cc52e0dd31b5eda5e88 Mon Sep 17 00:00:00 2001
From: Annyfee <2287551746@qq.com>
Date: Sun, 23 Nov 2025 16:27:30 +0800
Subject: [PATCH] refactor:use truthy check instead of len() for tool_calls

---
 08_langgraph_basics/03_conditional_router.py | 2 +-
 08_langgraph_basics/04_agent_with_memory.py  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/08_langgraph_basics/03_conditional_router.py b/08_langgraph_basics/03_conditional_router.py
index a835e31..46aef7d 100644
--- a/08_langgraph_basics/03_conditional_router.py
+++ b/08_langgraph_basics/03_conditional_router.py
@@ -41,7 +41,7 @@ tool_node = ToolNode(tools) # 工具节点函数，langgraph已封装
 # ReAct Step4:Loop Controller(是否循环)
 def should_continue(state:MessagesState):
     last_msg = state["messages"][-1]
-    if hasattr(last_msg,"tool_calls") and len(last_msg.tool_calls) > 0:
+    if hasattr(last_msg,"tool_calls") and last_msg.tool_calls:
         return "tools" # 有工具调用 -> 执行工具
     return END         # 无工具调用 -> 返回答案
 
diff --git a/08_langgraph_basics/04_agent_with_memory.py b/08_langgraph_basics/04_agent_with_memory.py
index 101e09f..542f902 100644
--- a/08_langgraph_basics/04_agent_with_memory.py
+++ b/08_langgraph_basics/04_agent_with_memory.py
@@ -49,7 +49,7 @@ tool_node = ToolNode(tools)
 # ReAct Step4:Loop Controller(是否循环)
 def should_continue(state:MessagesState):
     last_msg = state["messages"][-1]
-    if hasattr(last_msg,"tool_calls") and len(last_msg.tool_calls) > 0:
+    if hasattr(last_msg,"tool_calls") and last_msg.tool_calls:
         return "tools" # 有工具调用 -> 执行工具
     return END         # 无工具调用 -> 返回答案