old_contents: version_info = (0, 4, 0, 'final', 0)
  
  _specifier_ = {'alpha': 'a', 'beta': 'b', 'candidate': 'rc', 'final': ''}
  
  __version__ = '%s.%s.%s%s'%(version_info[0], version_info[1], version_info[2],
    '' if version_info[3]=='final' else _specifier_[version_info[3]]+str(version_info[4]))
  
new_contents: version_info = (0, 4, 1, 'alpha', 0)
  
  _specifier_ = {'alpha': 'a', 'beta': 'b', 'candidate': 'rc', 'final': ''}
  
  __version__ = '%s.%s.%s%s'%(version_info[0], version_info[1], version_info[2],
    '' if version_info[3]=='final' else _specifier_[version_info[3]]+str(version_info[4]))
  
subject: Bump development version