old_contents: from galpy.potential_src import Potential
  from galpy.potential_src import planarPotential
  from galpy.potential_src import linearPotential
  from galpy.potential_src import verticalPotential
  from galpy.potential_src import MiyamotoNagaiPotential
  from galpy.potential_src import LogarithmicHaloPotential
  from galpy.potential_src import DoubleExponentialDiskPotential
  from galpy.potential_src import PowerSphericalPotential
  from galpy.potential_src import TwoPowerSphericalPotential
  from galpy.potential_src import plotRotcurve
  from galpy.potential_src import plotEscapecurve
  from galpy.potential_src import KGPotential
  from galpy.potential_src import interpRZPotential
  from galpy.potential_src import DehnenBarPotential
  from galpy.potential_src import SteadyLogSpiralPotential
  from galpy.potential_src import TransientLogSpiralPotential
  #
  # Functions
  #
  evaluatePotentials= Potential.evaluatePotentials
  evaluateDensities= Potential.evaluateDensities
  evaluateRforces= Potential.evaluateRforces
  evaluatephiforces= Potential.evaluatephiforces
  evaluatezforces= Potential.evaluatezforces
  RZToplanarPotential= planarPotential.RZToplanarPotential
  RZToverticalPotential= verticalPotential.RZToverticalPotential
  plotPotentials= Potential.plotPotentials
  plotplanarPotentials= planarPotential.plotplanarPotentials
  plotlinearPotentials= linearPotential.plotlinearPotentials
  plotRotcurve= plotRotcurve.plotRotcurve
  plotEscapecurve= plotEscapecurve.plotEscapecurve
  evaluateplanarPotentials= planarPotential.evaluateplanarPotentials
  evaluateplanarRforces= planarPotential.evaluateplanarRforces
  evaluateplanarphiforces= planarPotential.evaluateplanarphiforces
  evaluatelinearPotentials= linearPotential.evaluatelinearPotentials
  evaluatelinearForces= linearPotential.evaluatelinearForces
  #
  # Classes
  #
  Potential= Potential.Potential
  planarAxiPotential= planarPotential.planarAxiPotential
  planarPotential= planarPotential.planarPotential
  linearPotential= linearPotential.linearPotential
  MiyamotoNagaiPotential= MiyamotoNagaiPotential.MiyamotoNagaiPotential
  DoubleExponentialDiskPotential= DoubleExponentialDiskPotential.DoubleExponentialDiskPotential
  LogarithmicHaloPotential= LogarithmicHaloPotential.LogarithmicHaloPotential
  KeplerPotential= PowerSphericalPotential.KeplerPotential
  PowerSphericalPotential= PowerSphericalPotential.PowerSphericalPotential
  NFWPotential= TwoPowerSphericalPotential.NFWPotential
  JaffePotential= TwoPowerSphericalPotential.JaffePotential
  HernquistPotential= TwoPowerSphericalPotential.HernquistPotential
  TwoPowerSphericalPotential= TwoPowerSphericalPotential.TwoPowerSphericalPotential
  KGPotential= KGPotential.KGPotential
  interpRZPotential= interpRZPotential.interpRZPotential
  DehnenBarPotential= DehnenBarPotential.DehnenBarPotential
  SteadyLogSpiralPotential= SteadyLogSpiralPotential.SteadyLogSpiralPotential
  TransientLogSpiralPotential= TransientLogSpiralPotential.TransientLogSpiralPotential
  
new_contents: from galpy.potential_src import Potential
  from galpy.potential_src import planarPotential
  from galpy.potential_src import linearPotential
  from galpy.potential_src import verticalPotential
  from galpy.potential_src import MiyamotoNagaiPotential
  from galpy.potential_src import LogarithmicHaloPotential
  from galpy.potential_src import DoubleExponentialDiskPotential
  from galpy.potential_src import PowerSphericalPotential
  from galpy.potential_src import TwoPowerSphericalPotential
  from galpy.potential_src import plotRotcurve
  from galpy.potential_src import plotEscapecurve
  from galpy.potential_src import KGPotential
  from galpy.potential_src import interpRZPotential
  from galpy.potential_src import DehnenBarPotential
  from galpy.potential_src import SteadyLogSpiralPotential
  from galpy.potential_src import TransientLogSpiralPotential
  from galpy.potential_src import MovingObjectPotential
  #
  # Functions
  #
  evaluatePotentials= Potential.evaluatePotentials
  evaluateDensities= Potential.evaluateDensities
  evaluateRforces= Potential.evaluateRforces
  evaluatephiforces= Potential.evaluatephiforces
  evaluatezforces= Potential.evaluatezforces
  RZToplanarPotential= planarPotential.RZToplanarPotential
  RZToverticalPotential= verticalPotential.RZToverticalPotential
  plotPotentials= Potential.plotPotentials
  plotplanarPotentials= planarPotential.plotplanarPotentials
  plotlinearPotentials= linearPotential.plotlinearPotentials
  plotRotcurve= plotRotcurve.plotRotcurve
  plotEscapecurve= plotEscapecurve.plotEscapecurve
  evaluateplanarPotentials= planarPotential.evaluateplanarPotentials
  evaluateplanarRforces= planarPotential.evaluateplanarRforces
  evaluateplanarphiforces= planarPotential.evaluateplanarphiforces
  evaluatelinearPotentials= linearPotential.evaluatelinearPotentials
  evaluatelinearForces= linearPotential.evaluatelinearForces
  #
  # Classes
  #
  Potential= Potential.Potential
  planarAxiPotential= planarPotential.planarAxiPotential
  planarPotential= planarPotential.planarPotential
  linearPotential= linearPotential.linearPotential
  MiyamotoNagaiPotential= MiyamotoNagaiPotential.MiyamotoNagaiPotential
  DoubleExponentialDiskPotential= DoubleExponentialDiskPotential.DoubleExponentialDiskPotential
  LogarithmicHaloPotential= LogarithmicHaloPotential.LogarithmicHaloPotential
  KeplerPotential= PowerSphericalPotential.KeplerPotential
  PowerSphericalPotential= PowerSphericalPotential.PowerSphericalPotential
  NFWPotential= TwoPowerSphericalPotential.NFWPotential
  JaffePotential= TwoPowerSphericalPotential.JaffePotential
  HernquistPotential= TwoPowerSphericalPotential.HernquistPotential
  TwoPowerSphericalPotential= TwoPowerSphericalPotential.TwoPowerSphericalPotential
  KGPotential= KGPotential.KGPotential
  interpRZPotential= interpRZPotential.interpRZPotential
  DehnenBarPotential= DehnenBarPotential.DehnenBarPotential
  SteadyLogSpiralPotential= SteadyLogSpiralPotential.SteadyLogSpiralPotential
  TransientLogSpiralPotential= TransientLogSpiralPotential.TransientLogSpiralPotential
  MovingObjectPotential= MovingObjectPotential.MovingObjectPotential
  
subject: add MovingObjectPotential to top-level