old_contents: from __future__ import print_function
  
  # Get the version.
  # version = {}
  # with open("version.py") as fp:
  #     exec(fp.read(), version)
  # __version__ = version['__version__']
  # del version
  
  from .model import Model
  from . import read
  from .recharge.recharge_func import Preferential, Linear, Percolation, \
      Combination
  from .rfunc import Gamma, Exponential, Hantush, Theis
  from .solver import LmfitSolve, DESolve
  from .stats import Statistics
  from .tseries import Tseries, Tseries2, Recharge, Well, Constant, NoiseModel
  
new_contents: from __future__ import print_function
  
  from . import read
  from .model import Model
  from .recharge.recharge_func import Preferential, Linear, Percolation, \
      Combination
  from .rfunc import Gamma, Exponential, Hantush, Theis
  from .solver import LmfitSolve, DESolve
  from .stats import Statistics
  from .tseries import Tseries, Tseries2, Recharge, Well, Constant, NoiseModel
  from .version import __version__
  
subject: Include version in package