Traceback (most recent call last):
  File "D:\python\as.py", line 31, in <module>
    f = r.json()
  File "D:\python\lib\site-packages\requests\models.py", line 808, in json
    return complexjson.loads(self.text, **kwargs)
  File "D:\python\lib\json\__init__.py", line 319, in loads
    return _default_decoder.decode(s)
  File "D:\python\lib\json\decoder.py", line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "D:\python\lib\json\decoder.py", line 357, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

# бот для выполнения упражнений    
# сайт: gramotei.cerm.ru  
 
import requests
import json
import collections
 
 
#номер упражнения и куки
rule_id = "1935085"
cookie  = "PHPSESSID=xxxxxxxxxxxxxxx"
 
#заголовки пакетов
headers = {"Host": "gramotei.cerm.ru",
           "User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0",
           "Accept": "*/*",
           "Accept-Language": "ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3",
           "X-Requested-With": "XMLHttpRequest",
           "DNT": "1",
           "Referer": "http://gramotei.cerm.ru/student/train/"+rule_id,
           "Cookie": cookie,
           "Connection": "keep-alive"}
 
headers2 = headers
headers2["Content-Type"] = "application/x-www-form-urlencoded; charset=UTF-8"
 
y = 0
while y < 5:
    #получение заданий
    r = requests.post("http://gramotei.cerm.ru/student/train/"+rule_id+"/new", headers = headers)
    f = r.json()
 
    lol = []
    n = 8
 
    for lts in f["word"]:
        SaveDate = '{"id":'+json.dumps(lts["id"])+',"rule_id":'+json.dumps(lts["rule"])+',"status":"correct"}'
        lol.append(json.loads(SaveDate, object_pairs_hook=collections.OrderedDict))
 
        if(n <= 0):
            data = "data="+json.dumps(lol)
            print(data)
 
            #отправка предварительного отчета чезез GET
            url = "http://gramotei.cerm.ru/App/Teacher/ajax.php?save_words=ok&ex_id="+rule_id+"&saving=0&data="+json.dumps(lol)
            SaveGet = requests.get(url, headers = headers)
            print(SaveGet.status_code, " ", SaveGet.text)
 
            #отправка отчета чезез POST
            SavePOST = requests.post("http://gramotei.cerm.ru/student/saveResult/"+rule_id, headers = headers2, data = data)
            print(SavePOST.status_code, " ", SavePOST.text)
        else:
            n=n-1

{"hidehead":true,"exercise":{"id":"193508","num":"0","name":"\u0415\u0413\u042d. \u0417\u0430\u00ad\u0434\u0430\u00ad\u043d\u0438\u044f 12. \u041f\u0440\u0430\u00ad\u0432\u043e\u00ad\u043f\u0438\u00ad\u0441\u0430\u00ad\u043d\u0438\u0435 \u041d\u0415 \u0438 \u041d\u0418","start":"2016-04-18","end":"2016-04-23","words":"200","mistakes":"10","type":"train"},"done":"11","unfixed":0,"words":[{"id":"30297","meta":"\u043a\u043e\u0435[-, ]\u043a\u0442\u043e","sign_list":["-"," "],"word_list":["\u043a\u043e\u0435-\u043a\u0442\u043e","\u043a\u043e\u0435 \u043a\u0442\u043e"],"dots":"\u043a\u043e\u0435..\u043a\u0442\u043e","status":"new","grade":"5","srule":"814","rule":199},{"id":"18412","meta":"\u043d\u0435[, ]\u0434\u043e\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0430\u044f","sign_list":[""," "],"word_list":["\u043d\u0435\u0434\u043e\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0430\u044f","\u043d\u0435 \u0434\u043e\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0430\u044f"],"dots":"\u043d\u0435..\u0434\u043e\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0430\u044f","status":"new","grade":"6","srule":"425","rule":245},{"id":"26960","meta":"\u0441\u043e\u0432\u0441\u0435\u043c \u043d\u0435[ ,]\u0432\u0435\u0440\u044f \u0441\u043b\u0443\u0445\u0430\u043c","sign_list":[" ",""],"word_list":["\u0441\u043e\u0432\u0441\u0435\u043c \u043d\u0435 \u0432\u0435\u0440\u044f \u0441\u043b\u0443\u0445\u0430\u043c","\u0441\u043e\u0432\u0441\u0435\u043c \u043d\u0435\u0432\u0435\u0440\u044f \u0441\u043b\u0443\u0445\u0430\u043c"],"dots":"\u0441\u043e\u0432\u0441\u0435\u043c \u043d\u0435..\u0432\u0435\u0440\u044f \u0441\u043b\u0443\u0445\u0430\u043c","status":"new","grade":"6","srule":"432","rule":586},{"id":"17068","meta":"\u043d[\u0438,\u0435] \u0441 \u0447\u0435\u043c \u043d\u0435 \u0441\u0440\u0430\u0432\u043d\u0438\u043c\u044b","sign_list":["\u0438","\u0435"],"word_list":["\u043d\u0438 \u0441 \u0447\u0435\u043c \u043d\u0435 \u0441\u0440\u0430\u0432\u043d\u0438\u043c\u044b","\u043d\u0435 \u0441 \u0447\u0435\u043c \u043d\u0435 \u0441\u0440\u0430\u0432\u043d\u0438\u043c\u044b"],"dots":"\u043d.. \u0441 \u0447\u0435\u043c \u043d\u0435 \u0441\u0440\u0430\u0432\u043d\u0438\u043c\u044b","status":"new","grade":"5","srule":"407","rule":984},{"id":"17542","meta":"\u043d\u0435[, ]\u043f\u0440\u0430\u0432\u0434\u0430","sign_list":[""," "],"word_list":["\u043d\u0435\u043f\u0440\u0430\u0432\u0434\u0430","\u043d\u0435 \u043f\u0440\u0430\u0432\u0434\u0430"],"dots":"\u043d\u0435..\u043f\u0440\u0430\u0432\u0434\u0430","status":"new","grade":"6","srule":"369","rule":"187","type":"pwm"},{"id":"30692","meta":"\u043d[\u0438,\u0435]\u043a\u0430\u043a \u043d\u0435 \u043f\u0440\u0438\u0434\u0443\u043c\u0430\u044e","sign_list":["\u0438","\u0435"],"word_list":["\u043d\u0438\u043a\u0430\u043a \u043d\u0435 \u043f\u0440\u0438\u0434\u0443\u043c\u0430\u044e","\u043d\u0435\u043a\u0430\u043a \u043d\u0435 \u043f\u0440\u0438\u0434\u0443\u043c\u0430\u044e"],"dots":"\u043d..\u043a\u0430\u043a \u043d\u0435 \u043f\u0440\u0438\u0434\u0443\u043c\u0430\u044e","status":"new","grade":"6","srule":"438","rule":232},{"id":"17066","meta":"\u043d[\u0438,\u0435]\u043a\u0442\u043e\u0301 \u043d\u0435 \u0432\u0438\u043d\u043e\u0432\u0430\u0442","sign_list":["\u0438","\u0435"],"word_list":["\u043d\u0438\u043a\u0442\u043e\u0301 \u043d\u0435 \u0432\u0438\u043d\u043e\u0432\u0430\u0442","\u043d\u0435\u043a\u0442\u043e\u0301 \u043d\u0435 \u0432\u0438\u043d\u043e\u0432\u0430\u0442"],"dots":"\u043d..\u043a\u0442\u043e\u0301 \u043d\u0435 \u0432\u0438\u043d\u043e\u0432\u0430\u0442","status":"new","grade":"5","srule":"407","rule":667},{"id":"27019","meta":"\u0441\u043c\u043e\u0442\u0440\u0438\u0442 \u043d\u0435[, ]\u0434\u043e\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0435","sign_list":[""," "],"word_list":["\u0441\u043c\u043e\u0442\u0440\u0438\u0442 \u043d\u0435\u0434\u043e\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0435","\u0441\u043c\u043e\u0442\u0440\u0438\u0442 \u043d\u0435 \u0434\u043e\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0435"],"dots":"\u0441\u043c\u043e\u0442\u0440\u0438\u0442 \u043d\u0435..\u0434\u043e\u0443\u043c\u0435\u0432\u0430\u044e\u0449\u0435","status":"new","grade":"6","srule":"766","rule":213},{"id":"17933","meta":"\u043d\u0435[, ]\u043a\u043e\u0442\u043e\u0440\u044b\u0435","sign_list":[""," "],"word_list":["\u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435","\u043d\u0435 \u043a\u043e\u0442\u043e\u0440\u044b\u0435"],"dots":"\u043d\u0435..\u043a\u043e\u0442\u043e\u0440\u044b\u0435","status":"new","grade":"6","srule":"400","rule":715},{"id":"18389","meta":"\u043d\u0435[ ,]\u0432\u044b\u043a\u0440\u0430\u0448\u0435\u043d","sign_list":[" ",""],"word_list":["\u043d\u0435 \u0432\u044b\u043a\u0440\u0430\u0448\u0435\u043d","\u043d\u0435\u0432\u044b\u043a\u0440\u0430\u0448\u0435\u043d"],"dots":"\u043d\u0435..\u0432\u044b\u043a\u0440\u0430\u0448\u0435\u043d","status":"new","grade":"6","srule":"427","rule":210},{"id":"17920","meta":"\u043d\u0435[ ,]\u0432\u0435\u0441\u0451\u043b\u044b\u0439, \u0430 \u0433\u0440\u0443\u0441\u0442\u043d\u044b\u0439","sign_list":[" ",""],"word_list":["\u043d\u0435 \u0432\u0435\u0441\u0451\u043b\u044b\u0439, \u0430 \u0433\u0440\u0443\u0441\u0442\u043d\u044b\u0439","\u043d\u0435\u0432\u0435\u0441\u0451\u043b\u044b\u0439, \u0430 \u0433\u0440\u0443\u0441\u0442\u043d\u044b\u0439"],"dots":"\u043d\u0435..\u0432\u0435\u0441\u0451\u043b\u044b\u0439, \u0430 \u0433\u0440\u0443\u0441\u0442\u043d\u044b\u0439","status":"new","grade":"6","srule":"379","rule":1008}],"id":"193508","isStudent":true}

>>> import requests
>>> 
>>> rule_id = "1935085"
>>> cookie  = "PHPSESSID=xxxxxxxxxxxxxxx"
>>> 
>>> headers = {"Host": "gramotei.cerm.ru",
...            "User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0",
...            "Accept": "*/*",
...            "Accept-Language": "ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3",
...            "X-Requested-With": "XMLHttpRequest",
...            "DNT": "1",
...            "Referer": "http://gramotei.cerm.ru/student/train/"+rule_id,
...            "Cookie": cookie,
...            "Connection": "keep-alive"}
>>> 
>>> headers2 = headers
>>> headers2["Content-Type"] = "application/x-www-form-urlencoded; charset=UTF-8"
>>> 
>>> r = requests.post("http://gramotei.cerm.ru/student/train/"+rule_id+"/new", headers = headers)
>>> 
>>> r.json()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/site-packages/requests/models.py", line 651, in json
    return json.loads(self.text or self.content, **kwargs)
  File "/usr/lib/python2.7/site-packages/simplejson/__init__.py", line 501, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python2.7/site-packages/simplejson/decoder.py", line 370, in decode
    obj, end = self.raw_decode(s)
  File "/usr/lib/python2.7/site-packages/simplejson/decoder.py", line 393, in raw_decode
    return self.scan_once(s, idx=_w(s, idx).end())
simplejson.scanner.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
>>> r
<Response [200]>
>>> r.text
u'logout'
>>>