text: # -*- coding: utf-8 -*-
  
  from __future__ import unicode_literals
  
  from django import template
  from django.template import Variable, VariableDoesNotExist
  from django.utils.safestring import mark_safe
  register = template.Library()
  
  
  @register.assignment_tag()
  def get(list_obj, idx):
      try:
          return list_obj[idx]
      except:
          return None
  
  
  @register.filter(is_safe=True)
  def float_format(value, args):
      """
      Acts a bit like the built-in «floatformat» but takes a pair of numbers as a
      string as the argument. These two numbers define the length of the number on
      the left and the right of the decimal point.
  
      When the number on the left of the decimal point needs padding, it is padded
      with a "0", but each ZERO is wrapped with a span with the class
      "leading-ZERO", which can be made non-visible if desired.
      """
      if args is None:
          return False
      args_list = [int(arg.strip()) for arg in args.split(',')]
      if len(args_list) != 2:
          return False
      left, right = args_list
  
      fmt = "{{value:{digits}.{right}f}}".format(
          digits=left + right + 1, right=right)
      ret = fmt.format(value=value)
      ret = mark_safe(ret.replace(' ', '<span class="leading-zero">0</span>'))
      return ret
  