Method __init__

numpy/core/arrayprint.py:1223–1229

(self, data)

class IntegerFormat:
    def __init__(self, data):
        if data.size > 0:
            max_str_len = max(len(str(np.max(data))),
                              len(str(np.min(data))))
        else:
            max_str_len = 0
        self.format = '%{}d'.format(max_str_len)

    def __call__(self, x):
        return self.format % x