You normally use tl-sso-password (or tl-sso-passphrase) as such: > $ tl-sso-password | command --password-on-stdin However if "command" exits very quickly then tl-sso-password will not have a functional pipe to write to and results in: > $ tl-sso-password | echo > > Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'> > BrokenPipeError: [Errno 32] Broken pipe (echo is used because it closes stdin right away) This is not a regression from converting to Python 3, as the same thing happens in 4.12.1: > $ tl-sso-password | echo > > close failed in file object destructor: > sys.excepthook is missing > lost sys.stderr It does however seem to be more likely in ThinLinc 4.13.0 as we're getting the following on a Scientific Linux 7.9 system: > Running /opt/thinlinc/etc/xstartup.d/01-tl-kinit.sh (Obtaining Kerberos ticket) > kinit: Configuration file does not specify default realm when parsing name cendio > Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='UTF-8'> > BrokenPipeError: [Errno 32] Broken pipe But when using ThinLinc 4.12.1 there is no such crash. This behaviour is discussed upstream here: https://bugs.python.org/issue11380 To handle this is seems like we should do a manual flush of stdout and be prepared for BrokenPipeError.
