def __init__(self): RegexpTokenizer.__init__(self, r'\w+|\s+|\[,.]+|\,+|[\{\}\-\<\>\=]+|(?!\')[^\w\s]')
def __init__(self): RegexpTokenizer.__init__( self, r'\w+|\s+|\[,.]+|\,+|[\{\}\-\<\>\=]+|(?!\')[^\w\s]')
def __init__(self): RegexpTokenizer.__init__(self, r'\w+\[.,]+|[\[\]\(\)\{\}"\-\<\>\=]+|[^\w\s]')
def __init__(self): RegexpTokenizer.__init__( self, r'\w+\[.,]+|[\[\]\(\)\{\}"\-\<\>\=]+|[^\w\s]')