code: def write_section(self, name, features, info, f):
          
          if not len(info) == 0:
              f.write('\n\n### %s ###\n' % name)
              f.write('%s\n' % '\t'.join(features))
              for line in info:
                  f.write('%s\n' % '\t'.join(map(str, line)))
docs: Provides formatting for one section (e.g. hydrogen bonds)