python模块变量引用,Python：我如何在模块中使用主文件中的变量？

I have 2 files main.py and irc.py.

main.py

import irc

var = 1

func()

irc.py

def func():

print var

When I try to run main.py I'm getting this error

NameError: global name 'var' is not defined

How to make it work?

@Edit

I thought there is a better solution but unfortunately the only one i found is to make another file and import it to both files

main.py

import irc

import another

another.var = 1

irc.func()

irc.py

import another

def func():

print another.var

another.py

var = 0

解决方案

Don't. Pass it in. Try and keep your code as decoupled as possible: one module should not rely on the inner workings of the other. Instead, try and expose as little as possible. In this way, you'll protect yourself from having to change the world every time you want to make things behave a little different.

main.py

import irc

var = 1

func(var)

irc.py

def func(var):

print var