要运行的py文件

# b.py
from a import *


def funb():
    print("fun b")
    funa()


if __name__ == "__main__":
    funb()

引用的同目录文件

# a.py
def funa():
    print("fun a")

框架文件

# c.py
import subprocess
import sys

if __name__ == "__main__":
    result = subprocess.run(
        [sys.executable, "b.py"], capture_output=True, text=True)
    print(result.stdout)

• 运行

python c.py

• 结果

fun b
fun a