improve start_browser

- make it executable
- try again within 30 seconds

start_browser.py

@@ -1,17 +1,26 @@
+#!/usr/bin/python
 import os
+import sys
 import time
 import socket
 
 show = True
+starttime = time.time()
+sys.stderr.write('start\n')
 for _ in range(30):
     try:
-        socket.create_connection(('localhost', 8010), timeout=1)
+        socket.create_connection(('localhost', 8080), timeout=1)
         os.system('/usr/bin/chromium-browser http://localhost:8080/')
-        break
+        t = time.time() - starttime
+        if t > 30:
+            break
+        sys.stderr.write(f'{t:.3f} try again\n')
     except Exception as e:
-        time.sleep(1)
+        t = time.time() - starttime
+        sys.stderr.write(f'{t:.3f} failed {e!r}\n')
         if show:
             print('waiting for frappy websocket')
             show = False
+        time.sleep(1)
 else:
     print('do not start chrome - waiting for frappy websocket failed')