File "/Users/softwareengineeringprasmul/Documents/VENVPYTH2/lib/python3.8/site-packages/django/core/management/base.py", line 336, in run_from_argv
    connections.close_all()
  File "/Users/softwareengineeringprasmul/Documents/VENVPYTH2/lib/python3.8/site-packages/django/db/utils.py", line 224, in close_all
    connection.close()
  File "/Users/softwareengineeringprasmul/Documents/VENVPYTH2/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 248, in close
    if not self.is_in_memory_db():
  File "/Users/softwareengineeringprasmul/Documents/VENVPYTH2/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 367, in is_in_memory_db
    return self.creation.is_in_memory_db(self.settings_dict['NAME'])
  File "/Users/softwareengineeringprasmul/Documents/VENVPYTH2/lib/python3.8/site-packages/django/db/backends/sqlite3/creation.py", line 12, in is_in_memory_db
    return database_name == ':memory:' or 'mode=memory' in database_name
TypeError: argument of type 'PosixPath' is not iterable

Solution :

remove current BASEDIR / in setting.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': BASE_DIR / 'db.sqlite3',
    }
}

into :

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': 'db.sqlite3',
    }
}