Hi RAfael.
which perform a render the options like checkbox of multiple selection in the django admin forms
You should install it of this way
2. Inside of your virtual environment execute pip install <name-of-file-tar.gz>
3. Specify 'multiselectfield' in the INSTALLED_APPS in settings.py
When you run the Django Server, if you are using Django 1.9.2 you see this warning
site-packages/multiselectfield/db/fields.py:45: RemovedInDjango110Warning: SubfieldBase has been deprecated. Use Field.from_db_value instead.
return metaclass(cls.__name__, cls.__bases__, orig_vars)
THis warning is related with this, but I unknown how to fix for the context of multiselectfield package application.
Another alternatives for multiselects fields are:
I hope that these resource are useful for you.
Best Regards.