从另一个文件访问在main func中创建的运行时配置实例

from config import runtime_config

# 使用runtime_config实例
print(runtime_config.some_property)

# main.py
runtime_config = None

def main():
    global runtime_config
    runtime_config = RuntimeConfig()

if __name__ == "__main__":
    main()

# another_file.py
from main import runtime_config

# 使用runtime_config实例
print(runtime_config.some_property)

# main.py
import json

def main():
    runtime_config = RuntimeConfig()
    config_data = {
        "some_property": runtime_config.some_property,
        "another_property": runtime_config.another_property
    }
    with open("config.json", "w") as config_file:
        json.dump(config_data, config_file)

if __name__ == "__main__":
    main()

# another_file.py
import json

# 从配置文件中读取配置信息
with open("config.json", "r") as config_file:
    config_data = json.load(config_file)

# 使用配置信息
print(config_data["some_property"])