有没有办法在Python中通过进程名获取PID？
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3110 meysam 20 0 971m 286m 63m S 14.0 7.9 14:24.50 chrome
例如，我需要在chrome之前得到3110.
您可以使用pidof到subprocess.check_output按名称获取进程的pid:
from subprocess import check_output
def get_pid(name):
return check_output(["pidof",name])
In [5]: get_pid("java")
Out[5]: '23366\n'
check_output(["pidof",name])将以"pidof process_name"If the return code was non-zero it raises a CalledProcessError.的形式运行命令
要处理多个条目并转换为整数:
from subprocess import check_output
def get_pid(name):
return map(int,check_output(["pidof",name]).split())
在[21]:获取pid("chrome")
Out[21]:
[27698, 27678, 27665, 27649, 27540, 27530, 27517, 14884, 14719, 13849, 13708, 7713, 7310, 7291, 7217, 7208, 7204, 7189, 7180, 7175, 7166, 7151, 7138, 7127, 7117, 7114, 7107, 7095, 7091, 7087, 7083, 7073, 7065, 7056, 7048, 7028, 7011, 6997]
或通过pas -s标志获得单个pid:
def get_pid(name):
return int(check_output(["pidof","-s",name]))
In [25]: get_pid("chrome")
Out[25]: 27698