old_contents: '''
  Redrock redshift fitter
  '''
  from __future__ import absolute_import, division, print_function
  
  __version__ = '0.4.2'
  
  from .dataobj import Target, Spectrum, Template
  from . import rebin
  from . import zscan
  from . import fitz
  from . import zwarning
  from . import io
  from .zfind import zfind
  from .plotspec import PlotSpec
  
new_contents: '''
  Redrock redshift fitter
  '''
  from __future__ import absolute_import, division, print_function
  
  __version__ = '0.4.2.dev1'
  
  from .dataobj import Target, Spectrum, Template
  from . import rebin
  from . import zscan
  from . import fitz
  from . import zwarning
  from . import io
  from .zfind import zfind
  from .plotspec import PlotSpec
  
subject: bump dev version after 0.4.2 tag