How to handle wait for input signal in python?

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I have a python code that has some inputs:

a = input("first input:")
b = input("second input:")

I run it from java:

Process process = new ProcessBuilder("python3", scriptPath).start();

but running from python is also suitable for me.

Is it possible to catch signal from python process when it waits for input and handle it somehow? For instance, on the first input I want to write some text to process.getOutputStream() and on the second input I want to kill process.

I found that there is SIGTTIN signal for terminal input. And I tried to do it in python:

def interrupted(signum, frame):
    exit()

signal.signal(signal.SIGTTIN, interrupted)
a = input()

but it did not work out.

python java
1 Answers

I didn't find a solution for the question that I asked. But I solve the initial problem by replacing input function on my own.

__builtins__.input = myfunc
user_47671340
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