p=subprocess.Popen("df -h",shell=True,stdout=subprocess.PIPE) 1. Popen对象有以下方法: Popen.poll() 检查子进程是否已结束,设置并返回returncode属性。 >>> p.poll() 1. Popen.wait() 等待子进程结束,设置并返回returncode属性。 >>> p.wait() 1. 注意: 如果子进程输出了大量数据到stdout或者stder...
import subprocess # args传入str的方式 有参数传入需shell=True,encoding可以指定capture_output(stdin、stdout、stderr)的编码格式 ret = subprocess.run('ls -l', shell=True, capture_output=True, encoding='utf-8') # ret.returncode 返回int类型,0 则执行成功 print('ret.returncode: ',ret.returncode)...
check_returncode(): 如果returncode是一个非0值,则该方法会抛出一个CalledProcessError异常。 示例: importsubprocess res= subprocess.run("ls -al /home/ljk/Videos", shell=True)print("args:", res.args)print("returncode:", res.returncode)print("stdout:", res.stdout)print("stderr:", res.std...
run(cmds,shell=True,text=True,stdout=subprocess.PIPE, stderr=subprocess.PIPE): 执行指定的命令，st...
1. subprocess的run、call、check_call、check_output函数 subprocess.run(args[, stdout, stderr, shell ...]):执行args命令,返回值为CompletedProcess类; 若未指定stdout,则命令执行后的结果输出到屏幕上,函数返回值CompletedProcess中包含有args和returncode; ...
subprocess.run() >>>subprocess.run(["ls","-l"])# doesn't capture outputCompletedProcess(args=['ls','-l'], returncode=0)>>>subprocess.run("exit 1", shell=True, check=True) Traceback (most recent call last): ... subprocess.CalledProcessError: Command'exit 1'returned non-zero exit...
Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, error = process.communicate() out = out.decode("utf-8") error = error.decode("utf-8") r = process.returncode return r, out, error def get_image_list(config_path): if not os.path.exists(config_path): ...
如果run()函数被调用时指定stderr=subprocess.STDOUT,那么stdout和stderr将会被整合到这一个属性中,且stderr将会为None stderr: 从子进程捕获的stderr。它的值与stdout一样,是一个字节序列或一个字符串。如果stderr灭有被捕获的话,它的值就为None check_returncode(): 如果returncode是一个非0值,则该方法会...
subprocess.run() 代码语言:python 代码运行次数:1 复制Cloud Studio 代码运行 >>> subprocess.run(["ls", "-l"]) # doesn't capture output CompletedProcess(args=['ls', '-l'], returncode=0) >>> subprocess.run("exit 1", shell=True, check=True) Traceback (most recent call last): ......
2.5:subprocess.getstatusoutput getstatusoutput(cmd) 返回命令退出状态,及命令执行中的输出。 Return (exitcode, output) of executing cmd in a shell. # encoding=gbkimport subprocess print(help(subprocess.getstatusoutput)) # ret = subprocess.getstatusoutput('python test.py')ret = subprocess.getstatus...