Python 3.X 报出 'utf-8' codec can't decode byte invalid start,pythondecode,Python 3.6中,


Python 3.6中,网页信息解析失败,试了很多种编码,查看网页的编码方式也是utf-8。
错误信息:'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte?
还有就是第一个print终端里打印出来的unicode内容是[b'\x1f\x8b\x08\x00\x...]这种格式的,之前也有过这种情况,一个print打2个变量,就是b'\x, 如果分来2行打又变回了汉字。是因为什么原因呢?

# -*- coding: utf-8 -*-import json , sqlite3import urllib.requesturl = ('http://wthrcdn.etouch.cn/weather_mini?city=%E4%B8%8A%E6%B5%B7')resp = urllib.request.urlopen(url)content = resp.read()print(content)print(type(content))print(content.decode('utf-8'))

建议用requeset,代码如下:

import requestsr = requests.get('http://wthrcdn.etouch.cn/weather_mini?city=%E4%B8%8A%E6%B5%B7')print(r.text)

看了一下网站返回的是gzip压缩过的数据,所以要进行解码

# coding=utf-8from io import BytesIOimport gzipimport urllib.requesturl = ('http://wthrcdn.etouch.cn/weather_mini?city=%E4%B8%8A%E6%B5%B7')resp = urllib.request.urlopen(url)content = resp.read() # content是压缩过的数据buff = BytesIO(content) # 把content转为文件对象f = gzip.GzipFile(fileobj=buff)res = f.read().decode('utf-8')print(res)

requests不好用吗?

不是字符编码问题, 你看看你请求的 Respont headers

    Status Code: 200 OK    Access-Control-Allow-Headers: *    Access-Control-Allow-Methods: *    Access-Control-Allow-Origin: *    Cache-Control: must-revalidate, max-age=300    Connection: Keep-Alive    Content-Encoding: gzip    Content-Length: 443    Date: Fri, 10 Mar 2017 03:20:46 GMT    Fw-Cache-Status: hit    Fw-Via: HTTP MISS from 58.59.19.99, DISK HIT from 183.131.161.27    Server: Tengine/2.1.2

是gzip, 如果用标准库的东西, 还需要把gzip 给解开

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