我一直在尝试简单地查看是否在"ps -A"命令中找到"网络"服务。但是,收到错误:"类型错误:类型'int'的参数不可迭代"。这是我的代码:
import subprocess
tmp = subprocess.call('ps -A', shell=True, stderr=subprocess.DEVNULL)
if 'networking' in tmp:
print("networking service is up an running!")
else:
print("networking service is not up :(")
即使在subprocess.call
函数 => 末尾使用 .decode(( 时,它也说这里不支持 .decode(( ...
有什么想法吗?
subprocess.call
返回一个整数,0
表示一切正常。
尝试subprocess.check_output
:
import subprocess
p = subprocess.check_output('ps -A', shell=True, stderr=subprocess.DEVNULL)
if b'networking' in p:
print("networking service is up an running!")
else:
print("networking service is not up :(")