如何通过python将数据文件发送到应用程序

Question

I read about the subprocess module and I found out that it is possible to send data-file (txt) into application that has been called through the subprocess module in python like:

import subprocess

 f = open('data-file.txt', 'r')
 with subprocess.Popen('runsoftware.exe', stdout=subprocess.PIPE,
           stdin=f)as p:
     stdout, stderr = p.communicate()
     sleep(1)
     subprocess.Popen.kill(p) 

but nothing happens. Is there any better way of sending data-file into an application?

Answer 1

You a erasing the file via opening in write mode.

import subprocess

 f = open('data-file.txt', 'r')
 with subprocess.Popen('runsoftware.exe', stdout=subprocess.PIPE,
           stdin=f)as p:
     stdout, stderr = p.communicate()
     sleep(1)
     subprocess.Popen.kill(p) 

Should send a file. Also you should close the file at the end or your code.