print() won't flush until whole function finished

[Yung Shen]

If you run following codes within plainbox job, the countdown numbers will not show up in each iteration until whole loop finished:

for i in range(10):
    print(i, end="\r", flush=True)
    time.sleep(0.5)

[Sylvain Pineau (sylvain-pineau)]

I you prefix the job command with PYTHONUNBUFFERED=1 you should get the desired behaviour.

[Sylvain Pineau (sylvain-pineau)]

See https://docs.python.org/3.5/using/cmdline.html#cmdoption-u

[Yung Shen (kaxing)]

Try to use this way:
command: export PYTHONUNBUFFERED=1; the_script

But still buffered.

[Sylvain Pineau (sylvain-pineau)]

and with the following syntax:

PYTHONUNBUFFERED=1 bt_connect --mouse

[Yung Shen (kaxing)]

I actually tried both, with and without export and no semicolon, but still buffered.
As in contrast, running the script directly, won't be any problem.