Python : Django TypeError: object() takes no parameters

I'm porting a django application from 1.x to 2.1 and got stuck with the error that says "TypeError: object() takes no parameters". I'm trying to solve the problem for quite a while but not even got a clue even after days of debugging and searching online

Middleware settings:

MIDDLEWARE = [
    'whitenoise.middleware.WhiteNoiseMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.locale.LocaleMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'django.middleware.security.SecurityMiddleware',
]

There are no problems with the indentation,

celery version : 4.2.1
raven version : 6.9.0
django version : 2.1

Here is my wsgi.py

import os
from raven.contrib.django.raven_compat.middleware.wsgi import Sentry

from django.core.wsgi import get_wsgi_application

os.environ.setdefault("DJANGO_SETTINGS_MODULE", “settings")
application=Sentry(get_wsgi_application())

Here is an excerpt from the error log

File "/usr/lib/python3.5/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)   File "<frozen importlib._bootstrap>", line 986, in _gcd_import   File "<frozen importlib._bootstrap>", line 969, in _find_and_load   File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked  File "<frozen importlib._bootstrap>", line 673, in _load_unlocked   File "<frozen importlib._bootstrap_external>", line 665, in exec_module   File "<frozen importlib._bootstrap>", line 222, in
_call_with_frames_removed   File "/app/wsgi.py", line 16, in <module>
    application=Sentry(get_wsgi_application())   File "/usr/local/lib/python3.5/dist-packages/django/core/wsgi.py", line 13, in get_wsgi_application
    return WSGIHandler()   File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/wsgi.py", line 136, in __init__
    self.load_middleware()   File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/base.py", line 36, in load_middleware
    mw_instance = middleware(handler) TypeError: object() takes no parameters

Error after using CustomSentry :

in <module>
    application = CustomSentry(get_wsgi_application())
  File "/usr/local/lib/python3.5/dist-packages/django/core/wsgi.py", line 13, in get_wsgi_application
    return WSGIHandler()
  File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/wsgi.py", line 136, in __init__
    self.load_middleware()
  File "/usr/local/lib/python3.5/dist-packages/django/core/handlers/base.py", line 36, in load_middleware
    mw_instance = middleware(handler)
TypeError: object() takes no parameters

Any help would be appreciated.

from Python : Django TypeError: object() takes no parameters