old_contents: 
  import argparse
  import os
  
  from rinoh.backend import pdf
  from rinoh.frontend.rst import ReStructuredTextParser
  
  from rinohlib.templates.article import Article
  
  
  def main():
      parser = argparse.ArgumentParser(description='Render a reStructuredText '
                                                   'document.')
      parser.add_argument('input', type=str, nargs='?',
                         help='the reStructuredText document to render')
      args = parser.parse_args()
  
      input_dir, input_file = os.path.split(args.input)
      input_base, input_ext = os.path.splitext(input_file)
  
      os.chdir(input_dir)
      parser = ReStructuredTextParser()
      document_tree = parser.parse(input_file)
      document = Article(document_tree, backend=pdf)
      document.render(input_base)
  
new_contents: 
  import argparse
  import os
  
  from rinoh import paper
  
  from rinoh.backend import pdf
  from rinoh.frontend.rst import ReStructuredTextParser
  
  from rinohlib.templates.article import Article, ArticleOptions
  
  
  def main():
      parser = argparse.ArgumentParser(description='Render a reStructuredText '
                                                   'document.')
      parser.add_argument('input', type=str, nargs='?',
                         help='the reStructuredText document to render')
      parser.add_argument('--paper', type=str, nargs='?', default='A4',
                         help='the paper size to render to')
      args = parser.parse_args()
  
      input_dir, input_file = os.path.split(args.input)
      input_base, input_ext = os.path.splitext(input_file)
  
      os.chdir(input_dir)
      parser = ReStructuredTextParser()
      document_tree = parser.parse(input_file)
      options = ArticleOptions(page_size=getattr(paper, args.paper.upper()))
      document = Article(document_tree, options, backend=pdf)
      document.render(input_base)
  
subject: allow specifying the page size