pexpect_bug_async.py

#!/usr/bin/env python3
import asyncio
import sys
import pexpect
    
@asyncio.coroutine
def run():
    cmd = ' '.join([
        sys.executable,
        'pexpect_bug_script.py'
    ])

    p = pexpect.spawn(cmd)
 
    while True:
        _ = yield from p.expect_exact('\r', async=True)
        data = p.before + p.after
        print("Got: {:s}".format(repr(data)))

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

if __name__ == '__main__':
    main()