pexpect_eof_async.py

#!/usr/bin/env python3
import asyncio
import sys
import pexpect
    
@asyncio.coroutine
def run():
    p = pexpect.spawn('./weirdness')
 
    while True:
        try:
            _ = yield from p.expect_exact('\r', async=True)
        except pexpect.EOF as e:
            print("2. output: {:s}".format(repr(p.before)))
            return
        else:
            print("1. output: {:s}".format(repr(p.before + p.after)))

def main():
    loop = asyncio.get_event_loop()
    loop.run_until_complete(run())
    loop.close()

if __name__ == '__main__':
    main()