Unfortunately, it’s not.
You’re trying to address a very specific error. Posting a “representative example” of what you think my_dict contains when this error occurs is not sufficient for answering your question about how a paginator is involved here.
For us to be able to have any realistic chance to diagnose this, we’re going to need to see the complete view where my_dict is being created, and that’s just as a starting point. This may extend into the forms and model definitions as well.