Question

Question: In python, Is it wise to use the imports from your sub classes, or does it matter?

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Info:

So, I have a program split up over 6 files. in almost every one of the .py files i import threading, socket, and pickle. What I’m wondering is this, is there an efficiency difference between:

File1.py:

import socket

File2.py:

import File1
import socket

and this:

File2.py:

import File1
from File1 import socket

Or even this:

File2.py

import File1
socket = File1.socket

Answer 1

Don’t use from File1 import socket. It doesn’t make a performance difference, but it gives headaches to other people having to look in the other file to see that File1.socket is actually socket, and it might get messy if you decide you don’t need socket in File1.

Also, this is against the python principles because:

1. it’s not the obvious way to do it
2. flat is better than nested
3. readability counts
4. special cases aren’t special enough to break the rules