subprocess.Popen()

def run():
    str_shell='ipconfig'
    sub=subprocess.Popen(args=str_shell,shell=True,stdin=subprocess.PIPE,stdout=subprocess.PIPE,
                         stderr=subprocess.PIPE,universal_newlines=True)
    try:
        out,err=sub.communicate(timeout=15)
    except TimeoutExpired:
        sub.kill()
        out, err = sub.communicate()
    #res=sub.stdout.readlines()

    if sub.returncode == 0:
        if out:
          #log.info("执行输出正常")
          log.info(out)
          return out
        if err:
          #log.error("出现异常")
          log.error(err,exc_info=True)
    else:
      if sub.returncode == 1:
          log.error("执行shell对象结果有空")
      else:
          raise subprocess.CalledProcessError(sub.returncode, str_shell)

　　

[root@hostuser src]# python3 subprocess_popen.py
[INFO]2019-05-18 23:39:07 Sat --app-- subprocess_popen.py:
<class 'str'>
[INFO]2019-05-18 23:39:07 Sat --app-- subprocess_popen.py:
Filesystem              1M-blocks  Used Available Use% Mounted on
/dev/mapper/centos-root     27627  8627     19000  32% /
devtmpfs                      894     0       894   0% /dev
tmpfs                         910     1       910   1% /dev/shm
tmpfs                         910    11       900   2% /run
tmpfs                         910     0       910   0% /sys/fs/cgroup
/dev/sda1                    1014   232       783  23% /boot
tmpfs                         182     1       182   1% /run/user/42
tmpfs                         182     0       182   0% /run/user/0
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:9100          0.0.0.0:*               LISTEN      6481/node_exporter
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      1/systemd
tcp        0      0 127.0.0.1:8080          0.0.0.0:*               LISTEN      7057/unicorn master
tcp        0      0 127.0.0.1:9168          0.0.0.0:*               LISTEN      6505/ruby
tcp        0      0 192.168.122.1:53        0.0.0.0:*               LISTEN      9232/dnsmasq
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      7211/sshd
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      7212/cupsd
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN      7459/master
tcp        0      0 127.0.0.1:6010          0.0.0.0:*               LISTEN      52237/sshd: root@pt
tcp        0      0 127.0.0.1:6011          0.0.0.0:*               LISTEN      57561/sshd: root@pt
tcp        0      0 0.0.0.0:8060            0.0.0.0:*               LISTEN      6479/nginx: master
tcp        0      0 0.0.0.0:8989            0.0.0.0:*               LISTEN      6479/nginx: master
tcp        0      0 127.0.0.1:9121          0.0.0.0:*               LISTEN      6485/redis_exporter
tcp        0      0 127.0.0.1:9090          0.0.0.0:*               LISTEN      6472/prometheus
tcp        0      0 127.0.0.1:9187          0.0.0.0:*               LISTEN      6494/postgres_expor
tcp6       0      0 :::111                  :::*                    LISTEN      1/systemd
tcp6       0      0 ::1:9168                :::*                    LISTEN      6505/ruby
tcp6       0      0 :::22                   :::*                    LISTEN      7211/sshd
tcp6       0      0 :::23                   :::*                    LISTEN      35527/xinetd
tcp6       0      0 ::1:631                 :::*                    LISTEN      7212/cupsd
tcp6       0      0 ::1:25                  :::*                    LISTEN      7459/master
tcp6       0      0 ::1:6010                :::*                    LISTEN      52237/sshd: root@pt
tcp6       0      0 ::1:6011                :::*                    LISTEN      57561/sshd: root@pt
NoneType: None
[root@hostuser src]#