code: def rellink (source, dest):
      
      from os.path import isabs, dirname, relpath, abspath
  
      if isabs (source):
          os.symlink (source, dest)
      elif isabs (dest):
          os.symlink (abspath (source), dest)
      else:
          os.symlink (relpath (source, dirname (dest)), dest)
docs: Create a symbolic link to path *source* from path *dest*. If either
      *source* or *dest* is an absolute path, the link from *dest* will point to
      the absolute path of *source*. Otherwise, the link to *source* from *dest*
      will be a relative link.