Why is the file too big when compiling a PyQt5 program?

Question

Python

Hello. I have written a python program using PyQt5.
The program works, but when compiling for some reason, the file is too large.
I use pyinstaller to compile.
pyinstaller -c -F -w -i icon.ico main.py
The program itself can be downloaded from the link https://yadi.sk/d/gTAaJp4-o3JKHQ
Why is this happening and how to fix it?

Answer 1

Well, what do you want, if it's not really an executable file, but a self-extracting archive containing the Python interpreter, your program's scripts, and all the libraries it uses.