ImportError: cannot import name 'python_2_unicode_compatible'

[rg2609]

I am trying to get hands-on with the djangocms forms and I am new to these djangocms I installed the djangocms by following these steps and it's get installed and then I am trying to add the aldryn-forms by following the steps.

But when I did python3 manage.py createsuperuser m getting the following error

Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "/home/ravi/Desktop/test_cms/env/lib/python3.6/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/home/ravi/Desktop/test_cms/env/lib/python3.6/site-packages/django/core/management/__init__.py", line 377, in execute
    django.setup()
  File "/home/ravi/Desktop/test_cms/env/lib/python3.6/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/home/ravi/Desktop/test_cms/env/lib/python3.6/site-packages/django/apps/registry.py", line 114, in populate
    app_config.import_models()
  File "/home/ravi/Desktop/test_cms/env/lib/python3.6/site-packages/django/apps/config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/ravi/Desktop/test_cms/env/lib/python3.6/site-packages/aldryn_forms/models.py", line 14, in <module>
    from django.utils.encoding import python_2_unicode_compatible
ImportError: cannot import name 'python_2_unicode_compatible'

I am using Django 3.1 and Python 3, this form plugins seem to work with a lower version of the Django python_2_unicode_compatible. Is there a way to handle this or how to handle this error?

Thank you.