[Tkinter] acceleration of data output in treeview tkinter

[Vladimir1984]

Good afternoon!

There are a million lines of data to output to such a table, maybe more. I first read the data from the database already prepared for display on the screen. I bring them out of memory and not from the base. The output line by line to the table takes time, if it is 5 thousand lines then it is seconds, but if 500 000 and more it is minutes.

I wanted to write data in multiple lines from multiple streams to a parallel.

I read the sources on this topic, I realized that I was mistaken - I had to build an interface on PySide2 (PyQT5). If necessary, I will redo it (tables are better implemented in it and output multithreading is supported).