Fix search can't be used two times

brains/search.yml

@@ -6,4 +6,4 @@
         message:
           - "Recherche effectuée"
     - search:
-        search: "{{search}}"
+        search: "{{ search }}"

resources/neurons/search/search.py

@@ -1,15 +1,26 @@
-import logging
 import subprocess
 
 from kalliope.core import NeuronModule
-from kalliope.core.NeuronModule import MissingParameterException
+from kalliope.core.NeuronModule import MissingParameterException, MissingParameterException
 
 class Search(NeuronModule):
     def __init__(self, **kwargs):
-        super(Search, self).__init__(**kwargs)
+        NeuronModule.__init__(self, **kwargs)
 
         self.query = kwargs.get('search', None)
 
-        if self.query is not None:
-            command = "xdg-open \"https://www.google.fr/search?q="+self.query+"&ie=utf-8&oe=utf-8\" &"
+        if self._is_parameters_ok():
+            command = "xdg-open \"https://www.google.fr/search?q="+self.query+"&ie=utf-8&oe=utf-8\""
             p = subprocess.Popen(command, shell=True)
+            self.say("Youpiiiii")
+    
+    def _is_parameters_ok(self):
+        """
+        Check if received parameters are ok to perform operations in the neuron
+        :return: true if parameters are ok, raise an exception otherwise
+        .. raises:: MissingParameterException
+        """
+        if self.query is None:
+            raise MissingParameterException("Query parameter is missing.")
+        
+        return True