diff --git a/beat/web/experiments/models.py b/beat/web/experiments/models.py
index 392382b9f6c2efb0acbe52e1c9dc26223fbe013d..cd413bd1513c3e3bd6b0967a99a0593df5372674 100755
--- a/beat/web/experiments/models.py
+++ b/beat/web/experiments/models.py
@@ -239,9 +239,9 @@ class Experiment(Shareable):
     #_____ Fields __________
 
     author            = models.ForeignKey(User, related_name='experiments',
-        on_delete=models.CASCADE)
-    toolchain         = models.ForeignKey(Toolchain,
-        related_name='experiments', on_delete=models.CASCADE)
+                                          on_delete=models.CASCADE)
+    toolchain         = models.ForeignKey(Toolchain, related_name='experiments',
+                                          on_delete=models.CASCADE)
     name              = models.CharField(max_length=200)
     short_description = models.CharField(max_length=100, default='', blank=True, help_text=Messages['short_description'])
     status            = models.CharField(max_length=1, choices=STATUS, default=PENDING)
@@ -577,7 +577,7 @@ class Experiment(Shareable):
             b.analyzer=algorithm.analysis()
             b.environment=env
             b.queue=queue
-            b.required_slots=job_description['nb_slots']
+            # TEMPORARILY DISABLED: b.required_slots=job_description['nb_slots']
             b.channel=job_description['channel']
             b.save()
 
@@ -911,21 +911,21 @@ class Block(models.Model):
     )
 
     experiment = models.ForeignKey(Experiment, related_name='blocks',
-        on_delete=models.CASCADE)
+                                   on_delete=models.CASCADE)
     name = models.CharField(max_length=200)
     command = models.TextField(null=True, blank=True)
     status = models.CharField(max_length=1, choices=STATUS, default=NOT_CACHED)
     analyzer = models.BooleanField(default=False)
     algorithm = models.ForeignKey(Algorithm, related_name='blocks',
-        on_delete=models.CASCADE)
+                                  on_delete=models.CASCADE)
     creation_date = models.DateTimeField(null=True, blank=True,
-        auto_now_add=True)
+                                         auto_now_add=True)
     start_date = models.DateTimeField(null=True, blank=True)
     end_date = models.DateTimeField(null=True, blank=True)
     environment = models.ForeignKey(Environment, related_name='blocks',
-        null=True, on_delete=models.SET_NULL)
+                                    null=True, on_delete=models.SET_NULL)
     queue = models.ForeignKey(Queue, related_name='blocks', null=True,
-        on_delete=models.SET_NULL)
+                              on_delete=models.SET_NULL)
 
     required_slots = models.PositiveIntegerField(default=1)
     channel = models.CharField(max_length=200, default='', blank=True,