What you actually can do is to insert your SQL INSERT statements for the many-to-many table created by django within a sql file of one of the models defined by you.

I had the same problem, a model called “image” and a model called “profile”, where i used a many-to-many relation to “image” in my “profile” model. I now just appended the “profile_images” sql code to my image.sql code. It works great!