python __init__.py

Question

i saw a lot of professional python softwares using __init__.py on their folders.
what does it do? and what advantage does it do on organizing the file directories?

i thought that __init__ is a constructor to a class but why did they chose this name over others?

Answer 1

https://www.sololearn.com/learn/JUMP_LINK__&&__Python__&&__JUMP_LINK/2490/

Answer 2

thx, i just haven't reached the packaging chapter so i haven't notice

Answer 3

It is a Python, which tells a directory is a package. When you import the directory, only __init__.py is imported as a module.