redirect stdout/stderr to browser

pier.py

 #!/usr/bin/env python3
 
 from glob import glob
+from io import StringIO
+from contextlib import redirect_stdout, redirect_stderr
+
 import http.server
 import socketserver
 
@@ -22,23 +25,30 @@ class ScriptServer(http.server.SimpleHTTPRequestHandler):
             self.send_result(f"{scr} does not exist. choose from:\n", printable_scripts)
             return
 
-        with open(scr) as f:
-            exec(f.read())
+        sio = StringIO()
+        with redirect_stdout(sio), redirect_stderr(sio):
+            with open(scr) as f:
+                exec(f.read())
+        res = sio.getvalue()
 
-        self.send_result(scr)
+        msg = f"{scr} output:\n"
+        msg += "_" * 80
+        msg += f"\n{res}"
+        self.send_result(msg)
 
 
     def send_result(self, *msg):
         self.send_response(200)
         self.send_header("Content-type", "text/html")
         self.end_headers()
-        msg = encode_html(msg)
+        msg = encode_html(*msg)
         self.wfile.write(msg)
         print(msg)
 
 
 
 def encode_html(*msg):
+    msg = (str(i) for i in msg)
     msg = " ".join(msg)
     msg = msg.split("\n")
     msg = "<br>".join(msg)