TypeError: int() argument must be a string or a number, not 'Popen' Python

Question

我有这些行使用 Popen

numcpu = sub.Popen("($(cat /proc/cpuinfo | grep 'physical id' | awk '{print $NF}' | sort | uniq | wc -l))", shell=True, stdout=sub.PIPE, stderr=sub.PIPE)
numcores = sub.Popen("($(cat /proc/cpuinfo | grep 'cpu cores' | awk '{print $NF}' | sort | uniq | wc -l))", shell=True, stdout=sub.PIPE, stderr=sub.PIPE)  
numsibling = sub.Popen("($(cat /proc/cpuinfo | grep 'siblings' | awk '{print $NF}' | sort | uniq | wc -l))", shell=True, stdout=sub.PIPE, stderr=sub.PIPE)

但运行进入此回溯错误

Traceback (most recent call last):
File "./cputool", line 53, in <module>
CpuTool()
File "./cputool", line 45, in CpuTool
numthreads = int(numsibling)/int(numcores)
TypeError: int() argument must be a string or a number, not 'Popen'

这条线

numthreads = int(numsibling)/int(numcores)

我是脚本新手，是否可以将这些 Popen 值分配给字符串或 int，这样可行吗？我认为做一个简单的 numcpu== 'anything' 行不通，但我可能是错的？对初学者有什么帮助吗？对于类似的案例，我在这里 (SO) 找不到任何东西，不幸的是我的案例。谢谢！

Answer 1

您可以使用 proc_name.stdout.readline() 读取标准输出，然后将其转换为 int。

numthreads = int(numsibling.stdout.readline())/int(numcores.stdout.readline())

TypeError: int() argument must be a string or a number, not 'Popen' Python

TypeError: int() argument must be a string or a number, not 'Popen' Python

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