file_io.py 文件源码

def __init__(self, idx, field, filename):
        """
        idx: index of probing point. type: tuple-3
        field: field to probe. type: numpy.array
        filename: recording file name. type: str

        """
        self.idx = tuple(idx)

        self.field = field

        f_name = str(filename)
        if exists(f_name):
            stderr.write('Warning: ' + f_name + ' already exists.\n')
        try:
            self.f = open(f_name, 'w')
        except IOError:
            self.f = None
            print('Warning: Can\'t open file ' + f_name + '.\n')