[英]Using files as stdin and stdout for subprocess
How do I replicate the following batch command using python subprocess module? 如何使用python子进程模块复制以下批处理命令?
myprogram < myinput.in > myoutput.out
In other words, how do I run myprogram
using the contents of myinput.in
as the standard input and myoutput.out
as standard output? 换句话说,如何使用myinput.in
的内容作为标准输入并使用myoutput.out
的标准输出来运行myprogram
?
The following should work: 以下应该工作:
myinput = open('myinput.in')
myoutput = open('myoutput.out', 'w')
p = subprocess.Popen('myprogram.exe', stdin=myinput, stdout=myoutput)
p.wait()
myoutput.flush()
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