Same problem after long long time, I got exact same opinion with you I could not deal with child_pricess and all of the other packages, it is so frustrating. Now I want to use c++/py to print labels for product. But there is another way, if you are using electron then you can print the window, use mvc to create pop-up window and use window.print() to print this window, using by usb001 port, not file print.