python动态执行py文件

通过os模块执行

import os
os.system("python main.py")

多线程

import threading
import os
threading.Thread(target=os.system, args=("python main.py",)).start()

多进程

from multiprocessing import Process
import os
Process(target=os.system, args=("python main.py",)).start()

通过exec执行

# 执行文件
from multiprocessing import Process
import threading

def exec_file(file_name, func_name):
    with open(file_name, "rb") as f:
        source_code = f.read()
    exec_code = compile(source_code, file_name, "exec")
    scope = {}
    exec(exec_code, scope)
    f = scope.get(func_name, None)
    f() #如果是函数则执行，类则初始化

if __name__ == "__main__":
	exec_file("main.py", "main")
	# 多线程
	# threading.Thread(target=exec_file, args=("main.py", "main")).start()
	# 多进程
	# Process(target=exec_file, args=("main.py", "main")).start()

结合sched定时模块，定时执行

from multiprocessing import Process
import threading
import sched
import time
import os

# 生成调度器
schedule = sched.scheduler(time.time, time.sleep)

# 执行文件
def exec_file(file_name, func_name):
    with open(file_name, "rb") as f:
        source_code = f.read()
    exec_code = compile(source_code, file_name, "exec")
    scope = {}
    exec(exec_code, scope)
    f = scope.get(func_name, None)
    f()

def checkedition(inc=3600):
    print("start")
    # Process(target=exec_file, args=("main.py", "main")).start()
    Process(target=os.system, args=("python main.py",)).start()
    schedule.enter(inc, 0, checkedition, (inc,))

def main(inc=3600):
    # enter四个参数分别为：间隔事件、优先级（用于同时间到达的两个事件同时执行时定序）、被调用触发的函数，
    # 给该触发函数的参数（tuple形式）
    schedule.enter(0, 0, checkedition, (inc,))
    schedule.run()

if __name__ == "__main__":
    main(60)