UnicodeDecodeError:'utf-8'编解码器无法解码位置0的字节0xff:无效的起始字节 [英] UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte
问题描述
我正在尝试从链接中抓取图片并将其放入图像文件中.请求响应正在返回字节流.因此,我正在使用解码('utf-8')转换为Unicode流,但是,我遇到了以下错误:
I am trying to scrap a picture from the link and put it into a image file. The request response is returning a byte stream. So I am using decode('utf-8') to convert to unicode stream however, I am facing the following error:
打印(info.decode(('utf-8')))
print (info.decode(('utf-8')))
UnicodeDecodeError:'utf-8'编解码器无法解码位置0:无效的起始字节中的字节0xff
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte
from urllib import request
img = request.urlopen('http://www.py4inf.com/cover.jpg')
fhand = open('cover.jpg', 'w')
size = 0
while True:
info = img.read(100000)
if len(info) < 1 : break
size = size + len(info)
print (info.decode(('utf-8')))
fhand.write(info.decode(('utf-8')))
print (size,'characters copied.')
fhand.close()
请让我知道如何进行.谢谢.
Please let me know how can I proceed. Thanks.
推荐答案
应该以二进制模式打开文件,然后可以逐字节复制流.由于shutil
已经具有便捷的帮助程序实用程序,因此您可以
The file should be opened in binary mode and then you can copy the stream byte for byte. Since shutil
already has a handy helper utility, you can
import shutil
import os
from urllib import request
img = request.urlopen('http://www.py4inf.com/cover.jpg')
with open('cover.jpg', 'wb') as fhand:
shutil.copyfileobj(img, fhand)
print(os.stat('cover.jpg').st_size, 'characters copied')
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