diff --git a/Plugins/Wox.Plugin.Kill/main.py b/Plugins/Wox.Plugin.Kill/main.py
index 44db261bdf..d8ea72c3dd 100644
--- a/Plugins/Wox.Plugin.Kill/main.py
+++ b/Plugins/Wox.Plugin.Kill/main.py
@@ -27,7 +27,7 @@ def query(key):
             pass
     return json.dumps(results)
 
-def killProcess(pid):
+def killProcess(context,pid):
      p = psutil.Process(int(pid))
      if p:
          p.kill()
diff --git a/Plugins/Wox.Plugin.V2ex/main.py b/Plugins/Wox.Plugin.V2ex/main.py
index ef3a1a504d..cc118d4883 100644
--- a/Plugins/Wox.Plugin.V2ex/main.py
+++ b/Plugins/Wox.Plugin.V2ex/main.py
@@ -27,7 +27,7 @@ def query(key):
         results.append(res)
     return json.dumps(results)
 
-def openUrl(url):
+def openUrl(context,url):
     webbrowser.open(url)
 
 if __name__ == "__main__":
diff --git a/Wox/Helper/WoxPythonException.cs b/Wox/Helper/WoxPythonException.cs
new file mode 100644
index 0000000000..7a3b8239fb
--- /dev/null
+++ b/Wox/Helper/WoxPythonException.cs
@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Wox.Helper
+{
+    public class WoxPythonException : WoxException
+    {
+        public WoxPythonException(string msg) : base(msg)
+        {
+        }
+    }
+}
diff --git a/Wox/PluginLoader/PythonPluginWrapper.cs b/Wox/PluginLoader/PythonPluginWrapper.cs
index 96976e2879..e161a42c77 100644
--- a/Wox/PluginLoader/PythonPluginWrapper.cs
+++ b/Wox/PluginLoader/PythonPluginWrapper.cs
@@ -1,9 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Reflection;
-using System.Runtime.InteropServices;
-using System.Windows.Documents;
 using Newtonsoft.Json;
 using Python.Runtime;
 using Wox.Helper;
@@ -13,7 +10,6 @@ namespace Wox.PluginLoader
 {
     public class PythonPluginWrapper : IPlugin
     {
-
         private PluginMetadata metadata;
         private string moduleName;
 
@@ -50,7 +46,7 @@ namespace Wox.PluginLoader
             {
 #if (DEBUG)
                 {
-                    throw;
+                    throw new WoxPythonException(e.Message);
                 }
 #endif
                 Log.Error(string.Format("Python Plugin {0} query failed: {1}", metadata.Name, e.Message));
@@ -82,15 +78,29 @@ namespace Wox.PluginLoader
             if (module == null)
             {
                 string error = string.Format("Python Invoke failed: {0} doesn't has module {1}",
-                   metadata.ExecuteFilePath,moduleName);
+                   metadata.ExecuteFilePath, moduleName);
                 Log.Error(error);
                 return json;
             }
 
             if (module.HasAttr(func))
             {
-                PyObject res = paras.Length > 0 ? module.InvokeMethod(func, paras) : module.InvokeMethod(func);
-                json = Runtime.GetManagedString(res.Handle);
+                try
+                {
+                    PyObject res = paras.Length > 0 ? module.InvokeMethod(func, paras) : module.InvokeMethod(func);
+                    json = Runtime.GetManagedString(res.Handle);
+                }
+                catch (Exception e)
+                {
+                    string error = string.Format("Python Invoke failed: {0}", e.Message);
+                    Log.Error(error);
+#if (DEBUG)
+                    {
+                        throw new WoxPythonException(error);
+                    }
+#endif
+                }
+
             }
             else
             {
@@ -99,7 +109,7 @@ namespace Wox.PluginLoader
                 Log.Error(error);
 #if (DEBUG)
                 {
-                    throw new ArgumentException(error);
+                    throw new WoxPythonException(error);
                 }
 #endif
             }
diff --git a/Wox/Wox.csproj b/Wox/Wox.csproj
index acc1016fc2..1e2dfba0ab 100644
--- a/Wox/Wox.csproj
+++ b/Wox/Wox.csproj
@@ -132,6 +132,7 @@
     <Compile Include="Helper\Log.cs" />
     <Compile Include="Helper\PluginInstaller.cs" />
     <Compile Include="Helper\WoxException.cs" />
+    <Compile Include="Helper\WoxPythonException.cs" />
     <Compile Include="HotkeyControl.xaml.cs">
       <DependentUpon>HotkeyControl.xaml</DependentUpon>
     </Compile>