code: def load_csv(filename, dialect='excel', encoding='utf-8'):
      
      return Context.fromfile(filename, 'csv', encoding, dialect=dialect)
docs: Load and return formal context from CSV file.
  
      Args:
          filename: Path to the CSV file to load the context from.
          dialect: Syntax variant of the CSV file (``'excel'``, ``'excel-tab'``).
          encoding (str): Encoding of the file (``'utf-8'``, ``'latin1'``, ``'ascii'``, ...).
  
      Example:
          >>> load_csv('examples/vowels.csv')  # doctest: +ELLIPSIS
          <Context object mapping 12 objects to 8 properties [a717eee4] at 0x...>