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pythonhttp-errorhttp-status-code-503goslate

HTTPError: HTTP Error 503: Service Unavailable goslate language detection request : Python

I have just started using the goslate library in Python to detect the language of the words in a text but after testing it for 7-8 inputs, I gave the input which had the words written in two languages, Arabic and English. After which, it started giving me the error. 

Traceback (most recent call last):
  File "<pyshell#0>", line 1, in <module>
    execfile("C:/test_goslate.py");
  File "C:/test_goslate.py", line 12, in <module>
    language_id = gs.detect('الدولة')
  File "C:\Python27\lib\site-packages\goslate.py", line 484, in detect
    return self._detect_language(text)
  File "C:\Python27\lib\site-packages\goslate.py", line 448, in _detect_language
    return self._basic_translate(text[:50].encode('utf-8'), 'en', 'auto')[1]
  File "C:\Python27\lib\site-packages\goslate.py", line 251, in _basic_translate
    response_content = self._open_url(url)
  File "C:\Python27\lib\site-packages\goslate.py", line 181, in _open_url
    response = self._opener.open(request, timeout=self._TIMEOUT)
  File "C:\Python27\lib\urllib2.py", line 410, in open
    response = meth(req, response)
  File "C:\Python27\lib\urllib2.py", line 523, in http_response
    'http', request, response, code, msg, hdrs)
  File "C:\Python27\lib\urllib2.py", line 448, in error
    return self._call_chain(*args)
  File "C:\Python27\lib\urllib2.py", line 382, in _call_chain
    result = func(*args)
  File "C:\Python27\lib\urllib2.py", line 531, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 503: Service Unavailable

I wrote the code as :

# -*- coding: utf8 -*-
import urllib2
import goslate


gs = goslate.Goslate()

language_id = gs.detect('wait الدولة')

print (gs.get_languages()[language_id])

and now it is not working at all for any input which I tested previously and is giving me same error. I tried finding error resolve on google but nothing helped. This is what I found : Link 1 - StackOverflow

I tried updating it with the command as also suggested in the link above : 

pip install -U goslate

but it did not help as it is already the newest updated version that I am using. Also I read in the library documentation that one gets this kind of error for translation when : 

If you get HTTP 5xx error, it is probably because google has banned your client IP address from transation querying.

You could verify it by access google translation service in browser manually.

You could try the following to overcome this issue:

query through a HTTP/SOCK5 proxy, see Proxy Support
using another google domain for translation: gs = Goslate(service_urls=['http://translate.google.de'])
wait for 3 seconds before issue another querying

I tried using proxy connection but nothing helped.

EDIT Could the reason be that Google allows only some number of requests per day ? In that case what better can be done ? Is there any other Python based library which can help me resolve this?

Solution

  • In the documentation update from 05 of January of 2016, the author says that they will not update Goslate to overpass Google API access control :

    Google has updated its translation service recently with a ticket mechanism to prevent simple crawler program like goslate from accessing. Though a more sophisticated crawler may still work technically, however it would have crossed the fine line between using the service and breaking the service. goslate will not be updated to break google’s ticket mechanism. Free lunch is over. Thanks for using.

    The official, Google-approved way to use Google Translate in your programs is with the paid Google Cloud Translation API. With anything else, you're going to be fighting Google's rate limiting and bot detection.