old_contents: __version__ = '0.1.0'
  __all__ = ['Locus']
  
  #import pyximport
  #pyximport.install()
  
  from .Locus import Locus
  from .Loci import Loci
  
  
new_contents: __version__ = '0.1.0'
  __all__ = ['Locus']
  
  #import pyximport
  #pyximport.install()
  
  from .Locus import Locus
  from .Loci import Loci
  from .Fasta import Fasta
  
  
subject: add a import line for fasta