Method __init__

Lib/test/test_argparse.py:44–47

(self, initial_value='', newline='\n')

    '''

    def __init__(self, initial_value='', newline='\n'):
        initial_value = initial_value.encode('utf-8')
        super().__init__(io.BufferedWriter(io.BytesIO(initial_value)),
                         'utf-8', newline=newline)

    def getvalue(self):
        self.flush()