python在命令行下使用google翻译(带语音)

说明1. 使用google翻译服务获得翻译和语音;
2. 使用mplayer播放获得的声音文件，因此，如果要播放语音，请确保PATH中能够找到mplayer程序，如果没有mplayer,请将use_tts设置为False运行。即：
main(use_tts=False)
3. 退出程序，输入"x",回车。

#! /usr/bin/env python
#coding=utf-8

import requests

def translate(words):
 import re
 url = ("http://translate.google.cn/translate_a/t?"
 "client=t&hl=zh-CN&sl=en&tl=zh-CN&ie=UTF-8&oe=UTF-8&oc=1&otf=2&ssel=3&tsel=0&sc=1&q=%s")
 ret = requests.get(url % words)
 if ret.status_code == 200:
 RULE_TRANSLATE = re.compile('''([^\[\]]+?)\]\]''')
 match = RULE_TRANSLATE.search(ret.text)
 t, o, s, _ = match.group(1).split(u",")
 print u"译文:", t[1:-1]
 print u"发音:", s[1:-1]
 print ""
 else:
 raise Exception("Google翻译服务状态码异常。")

def tts(words):
 import subprocess
 url = "http://translate.google.cn/translate_tts?ie=UTF-8&q=%s&tl=en&total=1&idx=0&textlen=4&prev=input"
 ret = requests.get(url % words)
 if ret.status_code == 200:
 ext = ret.headers["content-type"].split("/")[1]
 filename = "tts.%s" % ext
 with open(filename, "wb") as f:
 f.write(ret.content)
 # 不显示mplayer的输出
 log_file = "./mplayer.log"
 with open(log_file, "w") as f:
 subprocess.call(["mplayer", filename], stdout=f, stderr=f)
 else:
 raise Exception("Google TTS服务状态码异常。")

def main(use_tts=True):
 while 1:
 #在window下raw_input不能直接提示中文，需要u"中文".encode("gbk")
 #为了与平台无关，这里直接提示"English:"
 words = raw_input("English:")
 if words == "x":
 break
 if use_tts:
 tts(words)
 translate(words)

if __name__ == "__main__":
 main(use_tts=True)

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