diff --git a/src/backends/python/pythonextensions.cpp b/src/backends/python/pythonextensions.cpp
index 4431e9f9..5178bf11 100644
--- a/src/backends/python/pythonextensions.cpp
+++ b/src/backends/python/pythonextensions.cpp
@@ -1,222 +1,222 @@
 /*
     This program is free software; you can redistribute it and/or
     modify it under the terms of the GNU General Public License
     as published by the Free Software Foundation; either version 2
     of the License, or (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA  02110-1301, USA.
 
     ---
     Copyright (C) 2013 Filipe Saraiva <filipe@kde.org>
  */
 
 #include "pythonextensions.h"
 
 #include <QDebug>
 
 #include <KLocalizedString>
 
 #include "pythonutils.h"
 
 #define PYTHON_EXT_CDTOR(name) Python##name##Extension::Python##name##Extension(QObject* parent) : name##Extension(parent) {} \
                                      Python##name##Extension::~Python##name##Extension() {}
 
 PYTHON_EXT_CDTOR(LinearAlgebra)
 
 QString PythonLinearAlgebraExtension::createVector(const QStringList& entries, Cantor::LinearAlgebraExtension::VectorType type)
 {
     Q_UNUSED(type);
 
     QString command;
     command += QLatin1String("numpy.matrix([");
 
     foreach (const QString& entry, entries)
     {
         command += entry + QLatin1String(", ");
     }
 
     command.chop(2);
     command += QLatin1String("])\n");
 
     return command;
 }
 
 QString PythonLinearAlgebraExtension::createMatrix(const Cantor::LinearAlgebraExtension::Matrix& matrix)
 {
     QString command;
     command += QLatin1String("numpy.matrix([[");
 
     foreach (const QStringList row, matrix)
     {
         foreach (const QString entry, row)
         {
             command += entry;
             command += QLatin1String(", ");
         }
         command.chop(2);
         command += QLatin1String("], [");
     }
 
     command.chop(3);
     command += QLatin1String("])");
 
     return command;
 }
 
 QString PythonLinearAlgebraExtension::eigenValues(const QString& matrix)
 {
     return QString::fromLatin1("numpy.linalg.eigvals(%1)").arg(matrix);
 }
 
 QString PythonLinearAlgebraExtension::eigenVectors(const QString& matrix)
 {
     return QString::fromLatin1("numpy.linalg.eig(%1)").arg(matrix);
 }
 
 QString PythonLinearAlgebraExtension::identityMatrix(int size)
 {
     return QString::fromLatin1("numpy.identity(%1)").arg(size);
 }
 
 QString PythonLinearAlgebraExtension::invertMatrix(const QString& matrix)
 {
     return QString::fromLatin1("numpy.linalg.inv(%1)").arg(matrix);
 }
 
 QString PythonLinearAlgebraExtension::nullMatrix(int rows, int columns)
 {
     return QString::fromLatin1("numpy.zeros(%1, %2)").arg(rows).arg(columns);
 }
 
 QString PythonLinearAlgebraExtension::nullVector(int size, Cantor::LinearAlgebraExtension::VectorType type)
 {
     QString command = QLatin1String("numpy.zeros(%1, %2)");
     switch (type)
     {
         case ColumnVector:
             return command.arg(size).arg(1);
         case RowVector:
             return command.arg(1).arg(size);
         default:
             return Cantor::LinearAlgebraExtension::nullVector(size, type);
     }
 }
 
 QString PythonLinearAlgebraExtension::rank(const QString& matrix)
 {
     return QString::fromLatin1("numpy.linalg.matrix_rank(%1)").arg(matrix);
 }
 
 QString PythonLinearAlgebraExtension::charPoly(const QString& matrix)
 {
     return QString::fromLatin1("numpy.poly(%1)").arg(matrix);
 }
 
 PYTHON_EXT_CDTOR(Packaging)
 
 QString PythonPackagingExtension::importPackage(const QString& package)
 {
     return QString::fromLatin1("import %1").arg(package);
 }
 
 PYTHON_EXT_CDTOR(Plot)
 
 QString PythonPlotExtension::plotFunction2d(const QString& function, const QString& variable, const QString& left, const QString& right)
 {
     QString argumentToPlot = variable;
     QString xlimits;
 
     if(!function.isEmpty()){
         argumentToPlot = function + QLatin1String("(") + variable + QLatin1String(")");
     }
 
     if(!left.isEmpty() && !right.isEmpty()){
         xlimits = QString::fromLatin1("pylab.xlim(%1, %2)\n").arg(left, right);
     }
 
     return QString::fromLatin1("pylab.clf()\n"                     \
                                "pylab.plot(%1)\n"                  \
                                "%2"                                \
                                "pylab.show()").arg(argumentToPlot, xlimits);
 }
 
 QString PythonPlotExtension::plotFunction3d(const QString& function, const VariableParameter& var1, const VariableParameter& var2)
 {
     const Interval& interval1 = var1.second;
     const Interval& interval2 = var2.second;
 
     QString interval1Limits;
     QString interval2Limits;
 
     if(!interval1.first.isEmpty() && !interval1.second.isEmpty()){
         interval1Limits = QString::fromLatin1("ax3D.set_xlim3d(%1, %2)\n").arg(interval1.first, interval1.second);
     }
 
     if(!interval2.first.isEmpty() && !interval2.second.isEmpty()){
         interval2Limits = QString::fromLatin1("ax3D.set_ylim3d(%1, %2)\n").arg(interval2.first, interval2.second);
     }
 
     return QString::fromLatin1("from mpl_toolkits.mplot3d import Axes3D\n\n"                      \
                                "fig3D = pylab.figure()\n"                                         \
                                "ax3D = fig3D.gca(projection='3d')\n"                              \
                                "ax3D.plot_surface(%1, %2, %3(%1, %2), rstride=4, cstride=4)\n"    \
                                "%4%5"                                                             \
                                "pylab.show()").arg(var1.first).arg(var2.first, function, interval1Limits, interval2Limits);
 }
 
 PYTHON_EXT_CDTOR(Script)
 
 QString PythonScriptExtension::runExternalScript(const QString& path)
 {
     return QString::fromLatin1("exec(open(\"%1\").read())").arg(path);
 }
 
 QString PythonScriptExtension::scriptFileFilter()
 {
     return i18n("Python script file (*.py)");
 }
 
 QString PythonScriptExtension::highlightingMode()
 {
     return QLatin1String("python");
 }
 
 PYTHON_EXT_CDTOR(VariableManagement)
 
 QString PythonVariableManagementExtension::addVariable(const QString& name, const QString& value)
 {
     return setValue(name, value);
 }
 
 QString PythonVariableManagementExtension::setValue(const QString& name, const QString& value)
 {
     return QString::fromLatin1("%1 = %2").arg(name, value);
 }
 
 QString PythonVariableManagementExtension::removeVariable(const QString& name)
 {
     return QString::fromLatin1("del(%1)").arg(name);
 }
 
 QString PythonVariableManagementExtension::clearVariables()
 {
-    return fromSource(QLatin1String(":py/variables_cleaner.py"));
+    return fromSource(QLatin1String(":/py/variables_cleaner.py"));
 }
 
 QString PythonVariableManagementExtension::saveVariables(const QString& fileName)
 {
-    return fromSource(QLatin1String(":py/variables_saver.py")).arg(fileName);
+    return fromSource(QLatin1String(":/py/variables_saver.py")).arg(fileName);
 }
 
 QString PythonVariableManagementExtension::loadVariables(const QString& fileName)
 {
-    return fromSource(QLatin1String(":py/variables_loader.py")).arg(fileName);
+    return fromSource(QLatin1String(":/py/variables_loader.py")).arg(fileName);
 }