我有一个清单
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<h2>CSC 212 - Spring 2019.</h2>
<p>This site represents work that I have done in support of my
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</html>我想将此列表变量传递给linux命令，诸如此类。
apps = []
apps.append("wq35a5huqlja45jsyukrpmwuiayovrmh")
apps.append("q7mimvgduueernwvw4y22t5huemykntw")
apps.append("pmudbpyquna2bll53pwqh7gdejxtmchq")
但是我遇到以下错误。
TypeError：execv（）arg 2必须仅包含字符串
我也尝试过此操作，但同样无法正常工作。
subprocess.call(["service", "delete", apps])
有人可以让我知道如何将变量（列表，字典等）传递给subprocess.call命令
答案 0 :(得分：1)
<your-dessert>-release将扩展为
#include <stdlib.h>
#include <stdio.h>
int main(int argc, char *argv[])
{
char *buf = NULL;
int size;
unsigned int length;
size = getline(&buf, &length, stdin);
if (size != -1)
/* do anything you want with the stuff that was entered here */
/* for the example I just write it back to stdout! */
puts(buf);
else
/* this would be your "end" condition */
printf("Nothing read!\n");
printf("Size: %d\n Length: %d\n", size, length);
free(buf);
return 0;
}
答案 1 :(得分：0)
subprocess.call（“服务删除$ apps”，shell = True）
这是错误的，因为apps不是shell变量。可以直接使用python字符串变量。
In[12]: daemon = 'ntp'
In[13]: sb.call(["service", daemon, "status"])
● ntp.service - LSB: Start NTP daemon
Loaded: loaded (/etc/init.d/ntp; bad; vendor preset: enabled)
Active: active (running) since Mon 2019-03-04 01:37:43 IST; 1 day 13h ago
Docs: man:systemd-sysv-generator(8)
Process: 2045 ExecStart=/etc/init.d/ntp start (code=exited, status=0/SUCCESS)
Tasks: 1
Memory: 2.1M
CPU: 6.816s
CGroup: /system.slice/ntp.service
└─2345 /usr/sbin/ntpd -p /var/run/ntpd.pid -g -u 123:130
Warning: Journal has been rotated since unit was started. Log output is incomplete or unavailable.
Out[13]: 0
无论如何传递除字符串之外的任何内容，您都必须手动进行某种类型转换，因此对于列表，您将必须执行类似的操作。
>>> a = ['a', 'b', 'c']
>>> sb.call(["echo", ','.join(a)])
a,b,c
0
答案 2 :(得分：0)
我赞成Harly H的回答，但出于完整性考虑，这是另一种方式。
subprocess.run(['xargs', '-0', 'service', 'delete'],
input='\0'.join(apps)),
check=True, # probably a good idea, but not strictly required
universal_newlines=True)
这需要一个足够新的Python以拥有subprocess.run()，尽管即使使用Python 2 subprocess接口，类似的事情也是容易的，或者至少是可能的。在3.7+中，universal_newlines被更恰当地标记为text。
xargs是一个非常长的字符串， apps还将避免出现任何“参数列表太长”的错误。 （Google用于ARG_MAX。）