diff --git a/tutorial/databases_qepy/bn-semiconductor/plot-qe-bands.py b/tutorial/databases_qepy/bn-semiconductor/plot-qe-bands.py
index 0abf3952..2114ece1 100644
--- a/tutorial/databases_qepy/bn-semiconductor/plot-qe-bands.py
+++ b/tutorial/databases_qepy/bn-semiconductor/plot-qe-bands.py
@@ -1,8 +1,4 @@
-from __future__ import print_function, division
-import sys
-import argparse
 from qepy import *
-from schedulerpy import *
 from math import sqrt
 
 # k-points map
diff --git a/tutorial/databases_qepy/bn-semiconductor/plot-qe-orbitals.py b/tutorial/databases_qepy/bn-semiconductor/plot-qe-orbitals.py
index 24a3510d..a82e10f5 100644
--- a/tutorial/databases_qepy/bn-semiconductor/plot-qe-orbitals.py
+++ b/tutorial/databases_qepy/bn-semiconductor/plot-qe-orbitals.py
@@ -1,7 +1,4 @@
-import sys
-import argparse
 from qepy import *
-from schedulerpy import *
 from math import sqrt
 
 # Matplotlib options
diff --git a/tutorial/databases_qepy/gw-bands/plot-qp.py b/tutorial/databases_qepy/gw-bands/plot-qp.py
index 92150d04..446b55e9 100644
--- a/tutorial/databases_qepy/gw-bands/plot-qp.py
+++ b/tutorial/databases_qepy/gw-bands/plot-qp.py
@@ -1,13 +1,6 @@
-#
-# Author: Alejandro Molina-Sanchez
-#
-# Example of YamboQPDB Class 
-#
-from qepy import *
 from yambopy import *
 import matplotlib.pyplot as plt
 
-
 # Define path in reduced coordinates using Class Path
 npoints = 10
 path = Path([ [[  0.0,  0.0,  0.0],'$\Gamma$'],
@@ -57,7 +50,7 @@
 
 plt.show()
 
-# 4. Comparison of not-interpolaed and  interpolated eigenvalues
+# 4. Comparison of not-interpolated and  interpolated eigenvalues
 
 fig = plt.figure(figsize=(4,5))
 ax = fig.add_axes( [ 0.20, 0.20, 0.70, 0.70 ])
diff --git a/tutorial/databases_qepy/iron-metal/plot-qe-bands.py b/tutorial/databases_qepy/iron-metal/plot-qe-bands.py
index 4066df9e..8e21cdb5 100644
--- a/tutorial/databases_qepy/iron-metal/plot-qe-bands.py
+++ b/tutorial/databases_qepy/iron-metal/plot-qe-bands.py
@@ -1,9 +1,4 @@
-from __future__ import print_function, division
-import sys
-import argparse
 from qepy import *
-from schedulerpy import *
-from math import sqrt
 
 # k-points map
 npoints = 50
diff --git a/tutorial/databases_qepy/iron-metal/plot-qe-orbitals-colormap.py b/tutorial/databases_qepy/iron-metal/plot-qe-orbitals-colormap.py
index 5321eb2d..03f79714 100644
--- a/tutorial/databases_qepy/iron-metal/plot-qe-orbitals-colormap.py
+++ b/tutorial/databases_qepy/iron-metal/plot-qe-orbitals-colormap.py
@@ -1,9 +1,4 @@
-import sys
-import argparse
 from qepy import *
-from schedulerpy import *
-
-# Matplotlib options
 import matplotlib.pyplot as plt
 
 # k-points map
diff --git a/tutorial/databases_qepy/iron-metal/plot-qe-orbitals-size.py b/tutorial/databases_qepy/iron-metal/plot-qe-orbitals-size.py
index 24ae46e9..055f00fb 100644
--- a/tutorial/databases_qepy/iron-metal/plot-qe-orbitals-size.py
+++ b/tutorial/databases_qepy/iron-metal/plot-qe-orbitals-size.py
@@ -1,9 +1,4 @@
-import sys
-import argparse
 from qepy import *
-from schedulerpy import *
-
-# Matplotlib options
 import matplotlib.pyplot as plt
 
 # k-points map
diff --git a/tutorial/databases_yambopy/exc_kspace_plot.py b/tutorial/databases_yambopy/exc_kspace_plot.py
index 167613b9..9af90479 100644
--- a/tutorial/databases_yambopy/exc_kspace_plot.py
+++ b/tutorial/databases_yambopy/exc_kspace_plot.py
@@ -57,6 +57,7 @@
                   [int(npoints*2),int(npoints),int(sqrt(5)*npoints)] )
 
     ## [2.] Read electron energies
+    ## NB:  A YamboQPDB object containing QP corrections is also accepted
     yel = YamboElectronsDB.from_db_file(folder=save_path+'/SAVE')
     
     ## [3.A] Plot without interpolating the values