old_contents: __version__ = "2.3.1rc6"
  # __version__ has to be defined in the first line
  
  """
  :mod:`giddy` --- Spatial Dynamics and Mobility
  ==============================================
  
  """
  
  from . import directional
  from . import ergodic
  from . import markov
  from . import mobility
  from . import rank
  from . import util
  from . import sequence
  
new_contents: __version__ = "2.3.1"
  # __version__ has to be defined in the first line
  
  """
  :mod:`giddy` --- Spatial Dynamics and Mobility
  ==============================================
  
  """
  
  from . import directional
  from . import ergodic
  from . import markov
  from . import mobility
  from . import rank
  from . import util
  from . import sequence
  
subject: prepare for a formal release of giddy v2.3.1