python爬取有道翻译出错 {‘errorcode’:50}

leave591

在用urllib对有道翻译进行爬取时，出现了错误。
import urllib.request
import urllib.parse
import time
import random
import hashlib
url = 'http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule&sessionFrom=https://www.google.com/'
data = {}
d="aNPG!!u6sesA>hBAW1@(-"
a='fanyideskweb'
f = str(int(time.time()*1000) + random.randint(1,10))
sign = hashlib.md5((a+'hello'+f+d).encode('utf-8')).hexdigest()
data['i'] = 'hello'
data['from'] = 'AUTO'
data['to'] = 'AUTO'
data['smartresult'] = 'dict'
data['client'] = a
data['salt'] = f
data['sign'] = sign
data['doctype'] = 'json'
data['version'] = '2.1'
data['keyfrom'] = 'fanyi.web'
data['action'] = 'FY_BY_CLICKBUTTION'
data['typoResult'] = 'false'
data = urllib.parse.urlencode(data).encode('utf-8')

req=urllib.request.Request(url,data)
req.add_header('User-Agent','Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36')
print(urllib.request.urlopen(req).read().decode('utf-8'))

°蓝鲤歌蓝

'http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule&sessionFrom=https://www.google.com/' 把这里面的_o去掉。
爬取有道词典不需要这么多模块吧。

leave591

这个去掉-0是可以，但是翻译效果不一致

leave591

有大神来解释下嘛？去掉‘_o’确实可以，但是不去掉怎么弄