old_contents: from datetime import datetime
  import json
  from os.path import isfile
  
  
  def output_json(obj):
      if isinstance(obj, datetime):
          if obj.utcoffset() is not None:
              obj = obj - obj.utcoffset()
  
          return obj.strftime('%Y-%m-%d %H:%M:%S')
      return str(obj)
  
  
  def input_json(obj):
      new_dic = {}
  
      for key in obj:
          try:
              if float(key) == int(float(key)):
                  new_key = int(key)
              else:
                  new_key = float(key)
  
              new_dic[new_key] = obj[key]
              continue
          except ValueError:
              pass
  
          try:
              new_dic[str(key)] = datetime.strptime(obj[key], '%Y-%m-%d %H:%M:%S')
              continue
          except (TypeError, ValueError):
              pass
  
          new_dic[str(key)] = obj[key]
  
      return new_dic
  
  
  def load_saved(file):
      if isfile(file):
          saved = json.load(open(file, 'r'), object_hook=input_json)
      else:
          saved = []
      ids = set()
      for suchar in saved:
          ids.add(suchar['id'])
      return saved, ids
  
  
  def convert_to_date_time(date):
      year = int(date[:4])
      month = int(date[5:7])
      day = int(date[8:10])
      hour = int(date[11:13])
      minute = int(date[14:16])
      second = int(date[17:19])
      suchar_date = datetime(year, month, day, hour, minute, second)
      return suchar_date
  
  
  def create_suchar_to_save(id, date, votes, body):
      dst = {'id': id, 'date': date, 'votes': votes, 'body': body}
      return dst
new_contents: from datetime import datetime
  import json
  from os.path import isfile
  
  
  def output_json(obj):
      if isinstance(obj, datetime):
          if obj.utcoffset() is not None:
              obj = obj - obj.utcoffset()
  
          return obj.strftime('%Y-%m-%d %H:%M:%S')
      return str(obj)
  
  
  def input_json(obj):
      new_dic = {}
  
      for key in obj:
          try:
              if float(key) == int(float(key)):
                  new_key = int(key)
              else:
                  new_key = float(key)
  
              new_dic[new_key] = obj[key]
              continue
          except ValueError:
              pass
  
          try:
              new_dic[str(key)] = datetime.strptime(obj[key], '%Y-%m-%d %H:%M:%S')
              continue
          except (TypeError, ValueError):
              pass
  
          new_dic[str(key)] = obj[key]
  
      return new_dic
  
  
  def load_saved(file):
      if isfile(file):
          try:
              saved = json.load(open(file, 'r'), object_hook=input_json)
          except ValueError:
              saved = []
      else:
          saved = []
      ids = set()
      for suchar in saved:
          ids.add(suchar['id'])
      return saved, ids
  
  
  def convert_to_date_time(date):
      year = int(date[:4])
      month = int(date[5:7])
      day = int(date[8:10])
      hour = int(date[11:13])
      minute = int(date[14:16])
      second = int(date[17:19])
      suchar_date = datetime(year, month, day, hour, minute, second)
      return suchar_date
  
  
  def create_suchar_to_save(id, date, votes, body):
      dst = {'id': id, 'date': date, 'votes': votes, 'body': body}
      return dst
subject: Fix when old file couldn't have been read