diff --git a/decide/decide/settings.py b/decide/decide/settings.py
index 1d22b67324..38cd262138 100644
--- a/decide/decide/settings.py
+++ b/decide/decide/settings.py
@@ -1,11 +1,8 @@
 """
 Django settings for decide project.
-
 Generated by 'django-admin startproject' using Django 2.0.
-
 For more information on this file, see
 https://docs.djangoproject.com/en/2.0/topics/settings/
-
 For the full list of settings and their values, see
 https://docs.djangoproject.com/en/2.0/ref/settings/
 """
@@ -180,3 +177,4 @@
 
 
 INSTALLED_APPS = INSTALLED_APPS + MODULES
+
diff --git a/decide/postproc/tests.py b/decide/postproc/tests.py
index 236e15d4f8..eb2bc20c5d 100644
--- a/decide/postproc/tests.py
+++ b/decide/postproc/tests.py
@@ -15,25 +15,24 @@ def setUp(self):
     def tearDown(self):
         self.client = None
 
-    def test_identity(self):
+#test de la función de postproc Bipartisanship, 
+#comprueba que las dos opciones mayoritarias obtienen 25 y 15 escaños cada una
+    def test_bipartitanship(self):
         data = {
-            'type': 'IDENTITY',
+            'type': 'BIPARTISHANSHIP',
+            'numEscanyos': 40,
             'options': [
-                { 'option': 'Option 1', 'number': 1, 'votes': 5 },
+                { 'option': 'Option 1', 'number': 1, 'votes': 50 },
                 { 'option': 'Option 2', 'number': 2, 'votes': 0 },
-                { 'option': 'Option 3', 'number': 3, 'votes': 3 },
-                { 'option': 'Option 4', 'number': 4, 'votes': 2 },
-                { 'option': 'Option 5', 'number': 5, 'votes': 5 },
-                { 'option': 'Option 6', 'number': 6, 'votes': 1 },
+                { 'option': 'Option 3', 'number': 3, 'votes': 30 },
+                { 'option': 'Option 4', 'number': 4, 'votes': 20 },
             ]
         }
 
         expected_result = [
-            { 'option': 'Option 1', 'number': 1, 'votes': 5, 'postproc': 5 },
-            { 'option': 'Option 5', 'number': 5, 'votes': 5, 'postproc': 5 },
-            { 'option': 'Option 3', 'number': 3, 'votes': 3, 'postproc': 3 },
-            { 'option': 'Option 4', 'number': 4, 'votes': 2, 'postproc': 2 },
-            { 'option': 'Option 6', 'number': 6, 'votes': 1, 'postproc': 1 },
+            { 'option': 'Option 1', 'number': 1, 'votes': 50, 'postproc': 25 },
+            { 'option': 'Option 3', 'number': 3, 'votes': 30, 'postproc': 15 },
+            { 'option': 'Option 4', 'number': 4, 'votes': 20, 'postproc': 0 },
             { 'option': 'Option 2', 'number': 2, 'votes': 0, 'postproc': 0 },
         ]
     def test_hamilton(self):   
diff --git a/decide/postproc/views.py b/decide/postproc/views.py
index 9b16eeea62..aeac6c2b95 100644
--- a/decide/postproc/views.py
+++ b/decide/postproc/views.py
@@ -144,9 +144,39 @@ def dHont(self, options, numEscanyos):
         return Response(options)
 
 
+
+    def bipartishanship(self, options, numEscanyos):
+        # función de ordenación
+        def sortByVotes(e):
+            return e['votes']
+        # copiamos las opciones, ordenamos y obtenemos las dos con mayor número de votos        
+        opts = options
+        opts.sort(reverse=True,key=sortByVotes)
+        option1=opts[0]
+        option2=opts[1]
+        #calculamos la proporción de peso por cada voto   
+        votosTotales = option1['votes'] + option2['votes']
+        proporcion = numEscanyos/votosTotales
+        escanyos1 = round(option1['votes']*proporcion)
+        escanyos2 = round(option2['votes']*proporcion)
+        sumaEscanyos = escanyos1 + escanyos2
+        #si queda algún escaño sin asignar se lo damos al primero
+        if sumaEscanyos != numEscanyos:
+            sobrante = numEscanyos-sumaEscanyos
+            escanyos1 +=sobrante
+        #inicializamos y asignamos los escaños a los dos primeros
+        for op in opts:
+            op['postproc'] = 0
+        opts[0]['postproc'] = escanyos1
+        opts[1]['postproc'] = escanyos2
+        #reemplazamos las opciones y devolvemos el resultado
+        options = opts
+        return Response(options)
+
+
     def post(self, request):
         """
-         * type: IDENTITY | HUNTINGTONHILL | DHONT | HAMILTON
+         * type: IDENTITY | HUNTINGTONHILL | DHONT | HAMILTON | BIPARTITANSHIP
          * options: [
             {
              option: str,
@@ -163,6 +193,7 @@ def post(self, request):
 
         if t == 'IDENTITY':
             return self.identity(opts)
+        
           
         elif t=='HUNTINGTONHILL':
             return self.HuntingtonHill(options=opts, numEscanyos=numEscanyos)
@@ -172,5 +203,8 @@ def post(self, request):
           
         elif t== 'HAMILTON':
             return self.hamilton(options=opts, numEscanyos=numEscanyos)
+          
+        elif t == 'BIPARTISHANSHIP':
+            return self.bipartishanship(options=opts, numEscanyos=numEscanyos)
 
-        return Response({})
+        return Response({})
\ No newline at end of file
diff --git a/decide/voting/migrations/0004_voting_tipo.py b/decide/voting/migrations/0004_voting_tipo.py
index 67ddd1b346..34e7215aae 100644
--- a/decide/voting/migrations/0004_voting_tipo.py
+++ b/decide/voting/migrations/0004_voting_tipo.py
@@ -13,6 +13,6 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='voting',
             name='tipo',
-            field=models.CharField(choices=[('IDENTITY', 'IDENTITY'), ('HUNTINGTONHILL', 'HUNTINGTONHILL'), ('HAMILTON','HAMILTON')], default='IDENTITY', max_length=20, verbose_name='Count method'),
+            field=models.CharField(choices=[('IDENTITY', 'IDENTITY'), ('HUNTINGTONHILL', 'HUNTINGTONHILL'), ('HAMILTON','HAMILTON'), ('BIPARTITANSHIP', 'BIPARTITANSHIP')], default='IDENTITY', max_length=20, verbose_name='Count method'),
         ),
     ]
diff --git a/decide/voting/models.py b/decide/voting/models.py
index 4b962ef743..fcbfb01d85 100644
--- a/decide/voting/models.py
+++ b/decide/voting/models.py
@@ -37,7 +37,7 @@ class Voting(models.Model):
     end_date = models.DateTimeField(blank=True, null=True)
 
 
-    tipo_votacion = [("IDENTITY", "IDENTITY"),("HUNTINGTONHILL", "HUNTINGTONHILL"),("DHONT","DHONT"), ('HAMILTON', 'HAMILTON')]
+    tipo_votacion = [("IDENTITY", "IDENTITY"),("HUNTINGTONHILL", "HUNTINGTONHILL"),("DHONT","DHONT"), ('HAMILTON', 'HAMILTON'),("BIPARTISHANSHIP", "BIPARTISHANSHIP")]
     tipo = models.CharField(choices=tipo_votacion, max_length=20, default="IDENTITY", verbose_name='Count method')