二进制文件转npy文件（Python3）

admin

June 17, 2019, 7:36 p.m.

read: 1200

以下demo只支持float格式，仅提供思路，其他数据类型需自行扩展：

import numpy as np
import struct
def bin2npy(bin_file_path, npy_file_path, type='float'):
    assert type in ['float']
    out_data = []
    with open(bin_file_path, mode='rb') as bin_file:
        in_data = bin_file.read()
        for i in range(len(in_data)//4):
            out_data.append(struct.unpack("f", in_data[i*4:(i+1)*4]))
    # return np.array(out_data)
    np.save(npy_file_path, np.array(out_data))
if __name__ == '__main__':
    bin2npy('/Users/hupeng/work/60/lstm_in_63.bin', '/Users/hupeng/work/60/lstm_in_63.npy')