Index: bk_manager/trunk/ui/MainWindow.py
===================================================================
diff --git a/bk_manager/trunk/ui/MainWindow.py b/bk_manager/trunk/ui/MainWindow.py
--- a/bk_manager/trunk/ui/MainWindow.py	(revision 8)
+++ b/bk_manager/trunk/ui/MainWindow.py	(revision 9)
@@ -10,16 +10,14 @@
 from PyQt4 import QtGui
 from subprocess import *
 import sys
-import subprocess
+#import subprocess
+import commands
 
 class MainWindow(QMainWindow, Ui_MainWindow):
     """
     Class documentation goes here.
     """
     def __init__(self, parent = None):
-        """
-        Constructor
-        """
         QMainWindow.__init__(self, parent)
         self.setupUi(self)
     
@@ -30,9 +28,7 @@
         """
         var_Dpath= QtGui.QFileDialog.getExistingDirectory(self, 'Open Directory', './',  QtGui.QFileDialog.ShowDirsOnly)
         self.txtDpath.setText(var_Dpath)
-        
-        # TODO: not implemented yet
-#        raise NotImplementedError
+        self.on_txtDpath_editingFinished()
     
     @pyqtSignature("")
     def on_btnRpath_clicked(self):
@@ -47,23 +43,32 @@
    
     @pyqtSignature("")
     def on_txtDpath_editingFinished(self):
-        """
-        Slot documentation goes here.
-        """
+
+        var_Dpath=self.txtDpath.text()
         
-        
-        var_Dpath=self.txtDpath.text()
-        p1= Popen(['find', var_Dpath, '-name', '*.r'], stdout=PIPE)
-        p2= Popen(['awk', '-F/', '{print substr($NF,2,7)}'], stdin=p1.stdout, stdout=PIPE)
-        output_p2= p2.communicate()[0]
+        #Usando el modulo "subprocess" eric4 pide seleccion del tipo de subproceso (padre o hijo)
+        #por ello se prefiere usar el modulo "commands"
+        #p1= Popen(['find', var_Dpath, '-name', '*.r'], stdout=PIPE)
+        #p2= Popen(['awk', '-F/', '{print substr($NF,2,7)}'], stdin=p1.stdout, stdout=PIPE)
+        #output_p2= p2.communicate()[0]
         #self.txtInfo.setText(output_p2)
         
+        var_cmd="find " + str(var_Dpath) + " -name *.r | awk -F/ '{print substr($NF,2,7)}' | sort| uniq"
+        output_p2=commands.getstatusoutput(var_cmd)[]
+        
+        self.txtInfo.setText(output_p2)
+        
         var_list=[]
-        for i in range(0, len(output_p2)/8):
+        for i in range(0, (len(output_p2)+1)/8):
             var_list.append(output_p2[8*i:8*(i+1)-1])
         
         self.lstStartDay.clear()
+        self.lstStopDay.clear()
+                
+        for i in var_list:
+            self.lstStartDay.addItem(i)
+            self.lstStopDay.addItem(i)
         
-        for i in var_list:
-#            self.txtInfo.append(i)
-            self.lstStartDay.addItem(i)
+        self.txtInfo.setText(str(self.lstStartDay.count()))
+        self.lstStopDay.setCurrentIndex(self.lstStartDay.count()-1)
+