Add input validation and type conversion for user input (#1476)

Author: Abbas-Asad

examples/basic/lifecycle_example.py

@@ -88,11 +88,16 @@ class FinalResult(BaseModel):
 
 async def main() -> None:
     user_input = input("Enter a max number: ")
-    await Runner.run(
-        start_agent,
-        hooks=hooks,
-        input=f"Generate a random number between 0 and {user_input}.",
-    )
+    try:
+        max_number = int(user_input)
+        await Runner.run(
+            start_agent,
+            hooks=hooks,
+            input=f"Generate a random number between 0 and {max_number}.",
+        )
+    except ValueError:
+        print("Please enter a valid integer.")
+        return
 
     print("Done!")