What were you trying to do that didn't work?

"# leapp preupgrade --debug" finishes with error without producing any log

Please provide the package NVR for which bug is seen:

python-libs-2.7.5-94.el7_9.x86_64

python2-leapp-0.16.0-1.el7_9.noarch

How reproducible:

Always

Steps to reproduce

1. Configure non UTF-8 locale, for example: "localectl set-locale LANG=fr_FR.iso88591" and then run "leapp preupgrade --debug"
2. Or run "LANG=fr_FR.iso88591 leapp preupgrade --debug

Expected results

- Usual leapp output

Actual results

• No log generated under "/var/log/leapp", just:

1. leapp preupgrade --debug
   Traceback (most recent call last):
     File "/bin/leapp", line 9, in <module>
       load_entry_point('leapp==0.16.0', 'console_scripts', 'leapp')()
     File "/usr/lib/python2.7/site-packages/leapp/cli/_init_.py", line 45, in main
       cli.command.execute('leapp version {}'.format(VERSION))
     File "/usr/lib/python2.7/site-packages/leapp/utils/clicmd.py", line 111, in execute
       args.func(args)
     File "/usr/lib/python2.7/site-packages/leapp/utils/clicmd.py", line 133, in called
       self.target(args)
     File "/usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/breadcrumbs.py", line 159, in wrapper
       breadcrumbs = BreadCrumbs(activity=f.name_)
     File "/usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/breadcrumbs.py", line 43, in _init_
       'packages': self._get_packages(),
     File "/usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/breadcrumbs.py", line 122, in _get_packages
       res = _call(cmd, lambda x, y: None, lambda x, y: None)
     File "/usr/lib/python2.7/site-packages/leapp/libraries/stdlib/call.py", line 197, in _call
       **extra
     File "/usr/lib/python2.7/site-packages/leapp/libraries/stdlib/call.py", line 62, in _multiplex
       linebufs[fd] += decoders[fd].decode(read)
     File "/usr/lib64/python2.7/codecs.py", line 296, in decode
       (result, consumed) = self._buffer_decode(data, self.errors, final)
   UnicodeDecodeError: 'utf8' codec can't decode byte 0xfb in position 50: invalid start byte

Workaround in lab seems to be: "LANG=fr_FR.UTF-8 leapp preupgrade --debug" and "LANG=fr_FR.UTF-8 leapp upgrade --debug"