python run .exe app with argument

Question

If i write this in command prompt: "senna-win32.exe < input.txt >output.txt" it works perfect but i need to do this from python code, how is this possible?

I have tried:

import subprocess
subprocess.call([pathToExe, "input.txt" , "output.txt"])

import subprocess
subprocess.call([pathToExe, '< input.txt > output.txt'])

I'm getting error of "invalid argument < input.txt > output.txt".

Please indicate what happened when you tried those things. – Kevin Jan 11 '17 at 19:52 — Kevin, Jan 11 '17 at 19:52
Look closer at the documentation for `subprocess.call`... – Jan 11 '17 at 19:55 — , Jan 11 '17 at 19:55
@JackManey are you seeing something I'm doing wrong? – scorpion5211 Jan 11 '17 at 19:58 — scorpion5211, Jan 11 '17 at 19:58
@Kevin update with error – scorpion5211 Jan 11 '17 at 19:59 — scorpion5211, Jan 11 '17 at 19:59

score 2 · Accepted Answer · answered Jan 11 '17 at 20:35

2

Thank you Jack!!!

import subprocess
myinput = open('in.txt')
myoutput = open('out.txt', 'w')
p = subprocess.Popen('senna-win32.exe', stdin=myinput, stdout=myoutput)
p.wait()
myoutput.flush()

answered Jan 11 '17 at 20:35

scorpion5211

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python run .exe app with argument

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