title: check_password() in django always returning false
body: <p>I am making a custom reset password module. I am checking the old password with django auth User model. But check_password is always returning false. Please help if there is mistake in my logic.</p>
  
  <p>views.py</p>
  
  <pre><code>def user_pass_change(request):
      pass_old = request.POST.get('old_pass')
      hash_pass_new = make_password(request.POST.get('new_pass'))
      username = request.POST.get('username')
      user = User.objects.get(username=username)
      if user:
          check = check_password(user.password,pass_old)
  
          if check:
              User.objects.filter(username=username).update(password=hash_pass_new)
              messages.success(request, 'Password changed !')
              return redirect('/login')
          else:
              messages.warning(request, 'Wrong old password')
              return redirect('/login')
      else:
          messages.warning(request, 'Invalid Username !')
          return redirect('/login')
  </code></pre>
  
  <p>I have tried including these hashers in setting.py</p>
  
  <pre><code>PASSWORD_HASHERS = [
      'django.contrib.auth.hashers.BCryptSHA256PasswordHasher',
      'django.contrib.auth.hashers.BCryptPasswordHasher',
      'django.contrib.auth.hashers.PBKDF2PasswordHasher',
      'django.contrib.auth.hashers.PBKDF2SHA1PasswordHasher',
      'django.contrib.auth.hashers.Argon2PasswordHasher',
  ]
  </code></pre>
  
  <p>Thanks in advance</p>