old_contents: from __future__ import print_function
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  from . import Attenuation
  from . import BiotSavart
  from . import CondUtils
  from . import DC_cylinder
  from . import DCLayers
  from . import DCsphere
  from . import DC_Pseudosections
  from . import DCIP_overburden_PseudoSection
  from . import DCWidget_Overburden_2_5D
  from . import DCWidgetPlate2_5D
  from . import DCWidgetPlate_2D
  from . import DCWidgetResLayer2_5D
  from . import DCWidgetResLayer2D
  from . import DipoleWidget1D
  from . import DipoleWidgetFD
  from . import DipoleWidgetTD
  from . import EMcircuit
  from . import FDEMDipolarfields
  from . import FDEMPlanewave
  from . import FreqtoTime
  from . import HarmonicVMDCylWidget
  from . import InductionLoop
  from . import InductionSphereFEM
  from . import InductionSphereTEM
  from . import Loop
  from . import MT
  from . import PlanewaveWidgetFD
  from . import Reflection
  from . import sphereElectrostatic_example
  from . import TransientVMDCylWidget
  from . import View
  from . import VolumeWidget
  from . import VolumeWidgetPlane
  from . import MarineCSEM1D
  
  
  __version__ = '0.0.20'
  __author__ = 'GeoScixyz developers'
  __license__ = 'MIT'
  __copyright__ = 'Copyright 2017 GeoScixyz developers'
  
new_contents: from __future__ import print_function
  from __future__ import absolute_import
  from __future__ import unicode_literals
  import sys
  
  from . import Attenuation
  from . import BiotSavart
  from . import CondUtils
  from . import DC_cylinder
  from . import DCLayers
  from . import DCsphere
  from . import DC_Pseudosections
  from . import DCIP_overburden_PseudoSection
  from . import DCWidget_Overburden_2_5D
  from . import DCWidgetPlate2_5D
  from . import DCWidgetPlate_2D
  from . import DCWidgetResLayer2_5D
  from . import DCWidgetResLayer2D
  from . import DipoleWidget1D
  from . import DipoleWidgetFD
  from . import DipoleWidgetTD
  from . import EMcircuit
  from . import FDEMDipolarfields
  from . import FDEMPlanewave
  from . import FreqtoTime
  from . import HarmonicVMDCylWidget
  from . import InductionLoop
  from . import InductionSphereFEM
  from . import InductionSphereTEM
  from . import Loop
  from . import MT
  from . import PlanewaveWidgetFD
  from . import Reflection
  from . import sphereElectrostatic_example
  from . import TransientVMDCylWidget
  from . import View
  from . import VolumeWidget
  from . import VolumeWidgetPlane
  if sys.version_info[0] > 2:
      from . import MarineCSEM1D
  
  
  __version__ = '0.0.20'
  __author__ = 'GeoScixyz developers'
  __license__ = 'MIT'
  __copyright__ = 'Copyright 2017 GeoScixyz developers'
  
subject: add if statement for marine case app (not working for python 2)