diff --git a/project.clj b/project.clj
index caddd6b0..e715552e 100644
--- a/project.clj
+++ b/project.clj
@@ -16,7 +16,7 @@
                  [devcards "0.2.2"]
                  [devcards-om-next "0.3.0"]]
   :profiles {:dev {:dependencies [[figwheel-sidecar "0.5.9"]
-                                  [com.cemerick/piggieback "0.2.1"]] }}
+                                  [com.cemerick/piggieback "0.2.1"]]}}
   :jvm-opts ["-Xms356M" "-Xmx1G"]
   :clean-targets ^{:protect false} ["resources/public/dev/js"
                                     "resources/public/plugin_prod/js"
@@ -86,19 +86,19 @@
                                                 :verbose true}}
                        ;:plugin-prod-nice
                        #_{
-                        :source-paths ["src/klipse/run/plugin_prod"]
-                        :compiler {
-                                   :output-to "resources/public/plugin_prod/js/klipse_plugin.min.js"
-                                   :output-dir "resources/public/plugin_prod/js"
-                                   :pretty-print true
-                                   :elide-asserts false
-                                   :optimizations :advanced
-                                   :pseudo-names true
-                                   :closure-defines {klipse.core/version
-                                                     ~(->> (slurp "project.clj")
-                                                           (re-seq #"\".*\"")
-                                                           (first))}
-                                   :verbose true}}
+                          :source-paths ["src/klipse/run/plugin_prod"]
+                          :compiler {
+                                     :output-to "resources/public/plugin_prod/js/klipse_plugin.min.js"
+                                     :output-dir "resources/public/plugin_prod/js"
+                                     :pretty-print true
+                                     :elide-asserts false
+                                     :optimizations :advanced
+                                     :pseudo-names true
+                                     :closure-defines {klipse.core/version
+                                                       ~(->> (slurp "project.clj")
+                                                             (re-seq #"\".*\"")
+                                                             (first))}
+                                     :verbose true}}
                        :figwheel {
                                   :figwheel true
                                   :source-paths ["src"]
@@ -110,12 +110,11 @@
                                         ;:elide-asserts true
                                              :verbose false}}
                        :devcards {
-                                  :figwheel { :devcards true }
+                                  :figwheel { :devcards true}
                                   :source-paths ["src"]
                                   :compiler {:main "klipse.cards.cards"
                                              :asset-path "cards/js"
                                              :output-to "resources/public/cards/js/klipse.js"
                                              :output-dir "resources/public/cards/js"
                                         ;:elide-asserts true
-                                             :verbose false}}
-                       }})
+                                             :verbose false}}}})
diff --git a/src/klipse/klipse_editors.cljs b/src/klipse/klipse_editors.cljs
index 38ffe0fa..7382cb47 100644
--- a/src/klipse/klipse_editors.cljs
+++ b/src/klipse/klipse_editors.cljs
@@ -52,12 +52,8 @@
           (swap! state update-in [:eval-counter] inc)
           (let [evaluation-chan (eval-fn (str preamble src-code) @state)
                 first-result (<! evaluation-chan)]
-            (let [custom-event (js/CustomEvent. "klipse-snippet-evaled"
-                                               (clj->js {:detail {:state (clj->js @state)
-                                                                  :src-code src-code}}))]
-              (when-let [code-mirror-dom-node (js/document.querySelector ".klipse-container")]
-                (-> code-mirror-dom-node (.dispatchEvent custom-event))))
-            (setter first-result)
+              (setter first-result)
+            (js/console.log (str "loop-msec::" loop-msec))
             (when loop-msec
               (go-loop []
                 (let [[cmd c] (alts! [cmd-chan (timeout loop-msec)])]
diff --git a/src/klipse/lang/python.cljs b/src/klipse/lang/python.cljs
index 744cf9e2..90765e59 100644
--- a/src/klipse/lang/python.cljs
+++ b/src/klipse/lang/python.cljs
@@ -2,7 +2,7 @@
   (:use-macros [purnam.core :only [? ! !>]])
   (:require-macros
    [cljs.core.async.macros :refer [go go-loop]])
-  (:require 
+  (:require
    [cljs.core.async :refer [<! put! chan]]
    [klipse.utils :refer [runonce]]
    [klipse.common.registry :refer [codemirror-mode-src register-mode scripts-src]]))
@@ -22,16 +22,24 @@
   (init)
   (let [c (chan)]
     (!> js/Sk.configure #js {:output #(put! c %)
-                             :read builtin-read })
-    (-> 
+                             :read builtin-read})
+    (->
       (!> js/Sk.misceval.asyncToPromise
           (fn []
             (put! c "Output:\n")
             (! js/Sk.TurtleGraphics.target container-id)
             (!> js/Sk.importMainWithBody "<stdin>" false exp true)))
       (.then (fn [mod]
+               (let [custom-event (js/CustomEvent. "klipse-snippet-evaled"
+                                                  #js {:detail {:state :python-evaled-success}})]
+                 (when-let [code-mirror-dom-node (js/document.querySelector ".klipse-container")]
+                   (-> code-mirror-dom-node (.dispatchEvent custom-event))))
                (!> js/console.info "success to eval skulpt: "))
              (fn [err]
+               (let [custom-event (js/CustomEvent. "klipse-snippet-evaled"
+                                                  #js {:detail {:state :python-evaled-error}})]
+                 (when-let [code-mirror-dom-node (js/document.querySelector ".klipse-container")]
+                   (-> code-mirror-dom-node (.dispatchEvent custom-event))))
                (put! c (str "error: " err)))))
     c))