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[英]How to split list elements as words when text and integers are present in python?
[英]how to split output of system call in python into list of words?
我运行以下命令:
from subprocess import call
call(["uptime"])
我得到:
19:36:49最多4天,5:58,14个用户,平均负载:0.46,0.32,0.40
问题:我想将此字符串拆分为单词(每个单词均由空格分隔),以便可以检查一定量的负载。 我该怎么做呢?
非常感谢!
from datetime import timedelta
with open('/proc/uptime', 'r') as f:
uptime_seconds = float(f.readline().split()[0])
uptime_string = str(timedelta(seconds = uptime_seconds))
print(uptime_string)
您正在寻找subprocess.check_output
。
像这样(在解释器中):
>>> import subprocess
>>> output = subprocess.check_output("uptime", shell=False)
>>> print output.split()
['18:06:24', 'up', '16', 'days,', '22:40,', '8', 'users,', 'load', 'average:', '0.30,', '0.45,', '0.59']
有关更多信息,请参见https://docs.python.org/2/library/subprocess.html#subprocess.check_output
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