defisRunning(process_name):try: process= len(os.popen('ps aux | grep "'+ process_name +'" | grep -v grep').readlines())ifprocess >= 1:returnTrueelse:returnFalseexcept:print("Check process ERROR!!!")returnFalse 启动挂掉的进程 defstartProcess(process_script):try: result_code=os.system...
import subprocess import time def check_and_close_program(program_name): process = subprocess.Popen(["pgrep", program_name], stdout=subprocess.PIPE, stderr=subprocess.PIPE) stdout, stderr = process.communicate() if process.returncode == 0: print(f"{program_name} is running, closing it...
sub process is running # 标准输出 1 # 进程返回值 # 运行某个命令bash callSubprocess.sh 3 >>> subprocess.call(["bash", "callSubprocess.sh", "3"]) sub process is running # 标准输出 3 # 进程返回值 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 除了call() 之外,subprocess ...
如果输出很重要,则应使用Popen()和communicate()获取stdout和stderr。 >>> from subprocess import Popen, PIPE >>> process = Popen(['ls', '-l', '/tmp'], stdout=PIPE, stderr=PIPE) >>> stdout, stderr = process.communicate() >>> stderr '' >>> print stdout total 0 -rw-r--r-- 1...
Popen(["python", file_path]) if __name__ == '__main__': # 异步调用另一个python文件 async_call("another_file.py"): # 这里可以继续执行其他操作,不会被阻塞 2. multiprocessing模块 说明 multiprocessing模块是python标准库中用于创建和管理子进程的模块。通常用subprocess.Process类可以异步执行另一...
import threadingimport timedef function(arg):time.sleep(1)print('thread '+str(arg)+" running...")if __name__ == '__main__':#创建十个线程for i in range(10):t = threading.Thread(target=function, args=(i,))#线程启动start()t.start() Tread...
The .poll() method is a basic method to check if a process is still running. If it is, then .poll() returns None. Otherwise, it’ll return the process’s exit code. Then the program uses .read1() to try and read as many bytes as are available at .stdout. Note: If you put ...
("Enter directory to backup\n")# Enter directory namecheck_dir(backup_dir)print(backup_dir,"saved.")time.sleep(3)backup_to_dir=input("Where to backup?\n")check_dir(backup_to_dir)print("Doing the backup now!")ask_for_confirm()ifcon_exit==1:print("Aborting the backup process!")...
checkcode=''foriinrange(4):#循环4次,相当于4位长度的验证码 current=random.randint(0,4)#设定current随机数字与range范围相等ifcurrent==i:tmp=chr(random.randint(65,90))#随机匹配:当current等于i时,就随机一个字母else:tmp=random.randint(0,9)#当current不等于i时,就随机一个数字 ...
check_output(['chmod', '+x', filepath]) subprocess.check_output(['dos2unix', filepath]) subprocess.Popen() 实际上,上面的几个函数都是基于Popen()的封装(wrapper),这些封装的目的在于让我们容易使用子进程 当我们想要更个性化我们的需求的时候,就要转向Popen类,该类生成的对象用来代表子进程 与上面的...