new_contents: """ helper functions to gather the currency rates """
  
  from urllib.parse import urlencode
  import requests
  from decimal import Decimal, getcontext
  
  getcontext().prec = 2
  
  def fixer(base, target, value=1, date='latest'):
      """get currency exchange rate from fixer.io in JSON"""
      
      main_api = 'http://api.fixer.io/{}?'.format(date)
      url = main_api + urlencode({'base':base})
      json_data = requests.get(url).json()
  
      return round(json_data['rates'][target] * value, 2)
  
  def google_finance_converter(base, target, value):
      """ parse the Google Finance Converter html to extract the value"""
      pass
  
subject: add function to parse fixer_io