python-lmdb使用log

1

with open(imagePath, 'r') as f:
     imageBin = f.read()

错误：

  imageBin = f.read()
UnicodeDecodeError: 'gbk' codec can't decode byte 0xff in position 0: illegal multibyte sequence

解决方法：
open文件时按字节打开,参数加入 ‘b’

with open(imagePath, 'rb') as f:
     imageBin = f.read()

2写入的信息都需要编码为二进制形式

imageKey = ('image-%09d' % cnt).encode()
labelKey = ('label-%09d' % cnt).encode()
cache[imageKey] = imageBin
cache[labelKey] = label.encode()

转载于:https://www.cnblogs.com/yeran/p/11202041.html