Rewrote retry loop in execute.py

plugins/util/execute.py

@@ -1,14 +1,19 @@
 import http, web
-import json, urllib2, sys
 
 
 def eval_py(code, paste_multiline=True):
+    attempts = 0
+
     while True:
-        output = http.get("http://eval.appspot.com/eval", statement=code).rstrip('\n')
-        if output:
-            break
-        else:
-            pass
+        try:
+            output = http.get("http://eval.appspot.com/eval", statement=code).rstrip('\n')
+        except http.HTTPError:
+            if attempts > 2:
+                return "Failed to execute code."
+            else:
+                attempts += 1
+                continue
+        break
 
     if "Traceback (most recent call last):" in output:
         status = "Python error: "