diff --git a/utils/solvers/python/pend_with_pause.py b/utils/solvers/python/pend_with_pause.py
deleted file mode 100755
index c440584e5e1ea68c38591a38ebb733d6837a1fcb..0000000000000000000000000000000000000000
--- a/utils/solvers/python/pend_with_pause.py
+++ /dev/null
@@ -1,125 +0,0 @@
-#!/usr/bin/env python
-#coding=utf-8
-
-# 1) launch "gmsh pend.py"
-# 2) there is no 2... :-)
-
-import onelab
-import math, os
-
-c = onelab.client(__file__)
-
-def exportMsh(le1,le2):
- mshFile = open(c.getPath("pend.msh"),'w')
- mshFile.write('$MeshFormat\n2.2 0 8\n$EndMeshFormat\n')
- mshFile.write('$Nodes\n3\n1 0 0 0\n2 0 %s 0\n3 0 %s 0\n$EndNodes\n' %(-le1, -le1-le2))
- mshFile.write('$Elements\n3\n1 1 2 0 1 1 2\n2 1 2 0 1 2 3\n3 15 2 0 2 3\n$EndElements\n')
- mshFile.close()
-
-def exportMshOpt():
- optFile = open(c.getPath("pend.msh.opt"),'w')
- optFile.write('n = PostProcessing.NbViews - 1;\n')
- optFile.write('If(n >= 0)\nView[n].ShowScale = 0;\nView[n].VectorType = 5;\n')
- optFile.write('View[n].ExternalView = 0;\nView[n].DisplacementFactor = 1 ;\n')
- optFile.write('View[n].PointType = 1;\nView[n].PointSize = 5;\n')
- optFile.write('View[n].LineWidth = 2;\nEndIf\n')
- optFile.close()
-
-def exportIter(iter,t,x1,y1,x2,y2):
- mshFile = open(c.getPath("pend.msh"),'a')
- mshFile.write('$NodeData\n1\n"motion"\n1\n\t%f\n3\n\t%d\n3\n' % (t, iter))
- mshFile.write('\t3\n\t1 0 0 0\n\t2 %f %f 0\n\t3 %f %f 0\n$EndNodeData\n' %(x1,y1,x2,y2))
- mshFile.close()
-
-g = 9.8 # acceleration of gravity
-m = 0.3 # mass of pendulum balls
-
-l = c.defineNumber('Geom/arm length [m]', value=1.0)
-time = c.defineNumber('Dyna/time [s]', value=0.0)
-dt = c.defineNumber('Dyna/time step [s]', value=0.001)
-tmax = c.defineNumber('Dyna/max time [s]', value=20)
-refresh = c.defineNumber('Dyna/refresh interval [s]', value=0.1)
-theta0 = c.defineNumber('Init/initial theta angle [deg]', value=10,
- attributes={'Highlight':'Pink'})
-phi0 = c.defineNumber('Init/initial phi angle [deg]', value=180,
- attributes={'Highlight':'Pink'})
-
-pause = c.defineNumber('Pause', value=0, choices=[0,1])
-
-# we're done if we are in the "check" phase
-if c.action == 'check' :
- exit(0)
-
-l1 = l;
-l2 = l;
-m1 = m;
-m2 = m;
-theta = theta0 / 180.*math.pi;
-phi = phi0 / 180.*math.pi;
-theta_dot = 0.0
-phi_dot = 0.0
-refr = 0.0
-iter = 0
-time = 0.0
-
-while (time < tmax):
-
- delta = phi - theta
- sdelta = math.sin(delta)
- cdelta = math.cos(delta)
- theta_dot_dot = ( m2*l1*(theta_dot**2.0)*sdelta*cdelta
- + m2*g*math.sin(phi)*cdelta
- + m2*l2*(phi_dot**2.0)*sdelta
- - (m1+m2)*g*math.sin(theta) )
- theta_dot_dot /= ( (m1+m2)*l1 - m2*l1*(cdelta)**2.0 )
-
- phi_dot_dot = ( -m2*l2*(phi_dot**2.0)*sdelta*cdelta
- + (m1+m2)*(g*math.sin(theta)*cdelta
- - l1*(theta_dot**2.0)*sdelta
- - g*math.sin(phi)) )
- phi_dot_dot /= ( (m1+m2)*l2 - m2*l2*(cdelta)**2.0 )
-
- theta_dot = theta_dot + theta_dot_dot*dt
- phi_dot = phi_dot + phi_dot_dot*dt
-
- theta = theta + theta_dot*dt
- phi = phi + phi_dot*dt
-
- x1 = l1*math.sin(theta)
- y1 = -l1*math.cos(theta)
- x2 = l1*math.sin(theta) + l2*math.sin(phi)
- y2 = -l1*math.cos(theta) - l2*math.cos(phi)
-
- time += dt
- refr += dt
-
- exportMshOpt()
-
- if refr >= refresh:
- if(c.getNumber('Pause')):
- continue;
- refr = 0
- c.setNumber(c.name + '/Progress', value=time, min=0, max=tmax, visible=0)
- c.setNumber('Dyna/time [s]', value=time)
- c.setNumber('Solu/phi', value=phi)
- c.addNumberChoice('Solu/phi', phi)
- c.setNumber('Solu/theta', value=theta)
- c.addNumberChoice('Solu/theta', theta)
- c.setNumber('Solu/phi dot', value=phi_dot)
- c.addNumberChoice('Solu/phi dot', phi_dot)
- c.setNumber('Solu/theta dot', value=theta_dot)
- c.addNumberChoice('Solu/theta dot', theta_dot)
-
- # ask Gmsh to refresh
- c.setString('Gmsh/Action', value='refresh')
-
- # stop if we are asked to (by Gmsh)
- if(c.getString(c.name + '/Action') == 'stop'):
- break;
-
- exportMsh(l1, l2)
- exportIter(iter, time, x1, y1+l1, x2, y2+l1+l2)
- c.mergeFile(c.getPath('pend.msh'))
- iter += 1
-
-c.setNumber(c.name + '/Progress', value=0)