old_contents: import collections, functools32, datetime
  from Levenshtein import ratio
  from dateutil.parser import parse
  
  class FuzzyDict(collections.MutableMapping):
    def __init__(self, *args, **kwargs):
      self.d = dict()
      self.update(dict(*args, **kwargs))
  
    @functools32.lru_cache(128)
    def __get_best_time_match(self, key):
      try:
        key = parse(key.uppper())
        def diff(x):
          if key > x[1]:
            return key - x[1]
          else:
            return x[1] - key
        return min(map(lambda x: (x, diff(parse(x))), self.d.keys()), key=lambda x: x[1])
      except (ValueError, TypeError):
        return None
  
    @functools32.lru_cache(128)
    def __get_best_string_match(self, key):
      key = unicode(key)
      return max(map(lambda x: (x, ratio(x, key)), self.d.keys()), key=lambda x: x[1])
  
    def __get_best_match(self, key):
      if len(self.d) > 0:
        result = self.__get_best_time_match(key)
        if result and result[1] < datetime.timedelta(minutes=30):
          return self.d[result[0]]
  
        result = self.__get_best_string_match(key)
        if result and result[1] > 0.5:
          return self.d[result[0]]
  
      raise KeyError(key)
  
    def __getitem__(self, key):
      if key in self.d:
        return self.d[key]
      return self.__get_best_match(key)
  
    def __setitem__(self, key, value):
      self.d[key] = value
  
    def __delitem__(self, key):
      del self.d[key]
  
    def __iter__(self):
      return iter(self.d)
  
    def __len__(self):
      return len(self.d)
  
    def __hash__(self):
      return hash(frozenset(self.d.items()))
  
    def __str__(self):
      return str(self.d)
  
    def __repr__(self):
      return repr(self.d)
  
new_contents: import collections, functools32, datetime
  from Levenshtein import ratio
  from dateutil.parser import parse
  
  class FuzzyDict(collections.MutableMapping):
    def __init__(self, *args, **kwargs):
      self.d = dict()
      self.update(dict(*args, **kwargs))
  
    @functools32.lru_cache(128)
    def __get_best_time_match(self, key):
      try:
        key = parse(key.upper())
        def diff(x):
          if key > x[1]:
            return key - x[1]
          else:
            return x[1] - key
        return min(map(lambda x: (x, diff(parse(x))), self.d.keys()), key=lambda x: x[1])
      except (ValueError, TypeError):
        return None
  
    @functools32.lru_cache(128)
    def __get_best_string_match(self, key):
      key = unicode(key)
      return max(map(lambda x: (x, ratio(x, key)), self.d.keys()), key=lambda x: x[1])
  
    def __get_best_match(self, key):
      if len(self.d) > 0:
        result = self.__get_best_time_match(key)
        if result and result[1] < datetime.timedelta(minutes=30):
          return self.d[result[0]]
  
        result = self.__get_best_string_match(key)
        if result and result[1] > 0.5:
          return self.d[result[0]]
  
      raise KeyError(key)
  
    def __getitem__(self, key):
      if key in self.d:
        return self.d[key]
      return self.__get_best_match(key)
  
    def __setitem__(self, key, value):
      self.d[key] = value
  
    def __delitem__(self, key):
      del self.d[key]
  
    def __iter__(self):
      return iter(self.d)
  
    def __len__(self):
      return len(self.d)
  
    def __hash__(self):
      return hash(frozenset(self.d.items()))
  
    def __str__(self):
      return str(self.d)
  
    def __repr__(self):
      return repr(self.d)
  
subject: Fix typo