subprocess.Popen captures input until stty sane is run #7
Description
I've spent some time debugging this and I'm coming up short, so I'm filing this issue in case anyone else has ideas.
Regardless of if a pipe is used (internal vs external encoders) the input to the tty is not displayed until stty sane or reset is blindly typed into the terminal.
I've tried all of the suggestions from https://stackoverflow.com/questions/6488275/terminal-text-becomes-invisible-after-terminating-subprocess however all were unsuccessful beyond stty sane and reset, which are obviously just workarounds.
root@host:/# cat /etc/os-release
NAME="Ubuntu"
VERSION="18.04.4 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.4 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic
root@host:/# python3
Python 3.6.9 (default, Apr 18 2020, 01:56:04)
[GCC 8.4.0] on linux
This is running inside a docker container, accessed with docker exec -it host /bin/bash