(Python 2.7) JSON not decoding correctly.

[Popcorn Sutton]

I don't understand why this is happening. On my own PC, my program works flawlessly. It's using the TwitterAPI to find data specifically useful for my industry. Like I said, it works fine on my own PC, but I'm trying to set it up on the server right now and I keep getting this message-

Traceback (most recent call last):
  File "<pyshell#2>", line 1, in <module>
    Tweeter()
  File "C:\Python27\lib\site-packages\Tweeter.py", line 16, in Tweeter
    for item in s.get_iterator():
  File "C:\Python27\lib\site-packages\TwitterAPI\TwitterAPI.py", line 198, in __iter__
    yield json.loads(item.decode('utf-8'))
  File "C:\Python27\lib\json\__init__.py", line 338, in loads
    return _default_decoder.decode(s)
  File "C:\Python27\lib\json\decoder.py", line 365, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Python27\lib\json\decoder.py", line 383, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

I've tried looking into it already, and I've probably spent 2 hours now trying to fix the issue, but I'm running out of resources because the ones I am seeing aren't coherent to me.

[pzkpfw]

Is the content of the JSON good? Maybe in the server environment (due to firewalls or whatever - something different to your own PC) you're getting an error message back instead of well formed JSON data?

 

Can you dump/print/save the raw JSON before trying to decode?

[Sensei]

These paths are Windows-like.

Server is Windows? I don't think so..

They're rather Linux-based..

[Popcorn Sutton]

The server is windows, and thanks for pointing out the firewall issue, that may actually be the solution. I'll check into it

>>> import json
>>> print json.dumps('\\')
"\\"
>>> json.loads('\\')

Traceback (most recent call last):
  File "<pyshell#2>", line 1, in <module>
    json.loads('\\')
  File "C:\Python27\lib\json\__init__.py", line 338, in loads
    return _default_decoder.decode(s)
  File "C:\Python27\lib\json\decoder.py", line 365, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Python27\lib\json\decoder.py", line 383, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
>>> json.loads('"\\"foo\\bar"')
u'"foo\x08ar'

The firewall is not the solution, at least not on my end.

Edited May 14, 2014 by Popcorn Sutton

[Sensei]

That looks like similar issue to yours:

http://stackoverflow.com/questions/8011692/valueerror-in-decoding-json

http://stackoverflow.com/questions/16018780/decoding-json-with-python

Edited May 14, 2014 by Sensei

[Popcorn Sutton]

>>> r = api.request('search/tweets', {'q':'pizza'})
>>> for item in r.get_iterator():
	print (item['text'] if 'text' in item else item)

	
IF YOU FOLLOW ME I'LL BRING YOU PIZZA OK 

#AlfieWantsFood 18
Awkward missing the guy delivering pizza to the flat because we were having a planking competition
@butch_1983 yeah Pizza Hut
RT @Michael5SOS: "excuse me can I have a photo?" lol @Harry_Styles http://t.co/ljfU7uH7lU
RT @stephshuley_22: Boys aren't worth crying over honestly hey just eat some pizza and you'll be good
@PointlessBlog You followed dominos pizza lol #AlfieWantsFood pizza pizza pizza
RT @bucaloubaby: Pizza is in the shape of the food pyramid so can I just eat it all the time?
@dkf__ come over and let's go to pizza King
Me comi una pizza, mexicana, hawaiana y de peperoni, estaba mas buena
RT @Alyssamcdonald5: Craving pizza 24/7 
@ilooklloyd pizza
Someone give me a pizza
@PointlessBlog #AlfieWantsFood @Dominos_UK could you slip a pizza to alfie? @PointlessBlogTv preferably tuna&sweetcorn stuffed crust :Dxxx
“@ChloeDeCuyper01: Ik wil dat ge nu bij mij zijt en dat we samen pizza eten terwijl we een film zien ” @LiseLecocq
RT @feloquence: En pizza skulle sitta fint

The search works, but streaming from our location returns the error.

I am absolutely stumped on this one. It works just fine on my own PC but not on the server.

[pzkpfw]

Is there an encoding (or encoding of encoding) issue?

\\bar

... in the call seems to emit as:

\x08ar

... that is, the second backslash is being treated as an escape sequence.

 

(The combinations of double-quotes inside the single-quotes also look weird to me.)

[Popcorn Sutton]

When it works on my PC there is a bit of an encoding issue but I don't think that that is the problem. I've tried using different quotes as well but at this point I'm thinking that it's an os issue which is unfortunate

[AtomicMaster]

I bet its a UTF-8 issue, try simplejson sir, its a much better library. (you can install it through pip or apt)