如何在python中跨脚本共享变量？

# script1.py
global_var = "Hello, world!"

# script2.py
from script1 import global_var

print(global_var)

# shared_variables.py
shared_var = "I am a shared variable!"

# script1.py
from shared_variables import shared_var

print(shared_var)

# config.ini
[variables]
shared_var = I am a shared variable!

# script1.py
import configparser

config = configparser.ConfigParser()
config.read('config.ini')
shared_var = config.get('variables', 'shared_var')

print(shared_var)

export SHARED_VAR=I am a shared variable!

# script1.py
import os

shared_var = os.environ.get('SHARED_VAR')

print(shared_var)