wave.py 文件源码

def __init__(self, f):
        self._i_opened_the_file = None
        if isinstance(f, basestring):
            f = __builtin__.open(f, 'rb')
            self._i_opened_the_file = f
        # else, assume it is an open file object already
        try:
            self.initfp(f)
        except:
            if self._i_opened_the_file:
                f.close()
            raise