improve browser agent code parsing

apps/browser/app.py

@@ -13,7 +13,7 @@
 from siteuse import site_use
 
 def take_screenshot():
-  time.sleep(1)
+  time.sleep(2)
   driver.save_screenshot("screenshot.png")
   shutil.copy("screenshot.png", f"storage/screenshot-{int(time.time())}.png")
 
@@ -36,7 +36,7 @@ def take_screenshot():
     exec(code)
     take_screenshot()
   except Exception as e:
-    print(f"Failed to use browser, details follow.\n```{code}```\n\n```{e}```\n")
+    print(f"Failed to use browser, details follow.\n```{code}```\n\n```\n{e}```\n")
 
   prompt = h9.input("Taking screenshot, what next?")
 

apps/browser/siteuse.py

@@ -13,6 +13,7 @@
 from selenium.webdriver.support.ui import WebDriverWait
 from selenium.webdriver.support import expected_conditions as EC
 
+At the beginning of the code, use print() to communicate what the code will do.
 Only reply with a code block for python code.
 """
 
@@ -24,4 +25,6 @@ def site_use(prompt, current):
   completion = Groq().chat.completions.create(model = "llama3-70b-8192", messages = messages)
   content = completion.choices[0].message.content
   extracted = h9.extract(content, language = "*")
+  if len(extracted) == 0:
+    return content
   return extracted