Description of problem:

Running "tracer -iat 1589528011.6932232" would allow me to see which applications need a restart since a particular package upgrade.

It lists the components that need a restart and invites me to select one for more details. When I do so, the program crashes with a python backtrace.

Version-Release number of selected component (if applicable):

0.7.1-8

How reproducible:

Always

Steps to Reproduce:
1. Run "sudo tracer -iat 1589528011.6932232"
2. Select a component (other than kernel). In my case, I selected "8" (gjs), but YMMV.

Actual results:

Press application number for help or 'q' to quit
--> 8
Traceback (most recent call last):
  File "/usr/bin/tracer", line 34, in <module>
    tracer.main.run()
  File "/usr/lib/python3.8/site-packages/tracer/main.py", line 45, in run
    return router.dispatch()
  File "/usr/lib/python3.8/site-packages/tracer/resources/router.py", line 56, in dispatch
    controller.render_interactive()
  File "/usr/lib/python3.8/site-packages/tracer/controllers/default.py", line 109, in render_interactive
    helper_controller.print_helper(filtered[int(answer) - 1], self.args)
  File "/usr/lib/python3.8/site-packages/tracer/controllers/helper.py", line 48, in print_helper
    package = manager.provided_by(app)
  File "/usr/lib/python3.8/site-packages/tracer/resources/PackageManager.py", line 63, in provided_by
    return self.package_managers[0].provided_by(app)
  File "/usr/lib/python3.8/site-packages/tracer/packageManagers/rpm.py", line 129, in provided_by
    package = self._file_provided_by(process.exe)
  File "/usr/lib/python3.8/site-packages/tracer/packageManagers/rpm.py", line 148, in _file_provided_by
    p = Package(pkg[rpm.RPMTAG_NAME].decode())
AttributeError: 'str' object has no attribute 'decode'

Expected results:

Details on "gjs" and why/how it needs to be restarted.

Additional info:

Here's the complete command sequence:

----
$ sudo tracer -iat 1589528011.6932232

You should restart:
[1]  (sd-pam)
[2]  Keybase
[3]  cloud-drive-ui
[4]  dbus-broker
[5]  dbus-broker
[6]  firefox
[7]  flameshot
[8]  gjs
[9]  gnome-shell
[10] gnome-software
[11] gsd-color
[12] gsd-keyboard
[13] gsd-media-keys
[14] gsd-power
[15] gsd-wacom
[16] gsd-xsettings
[17] ibus-x11
[18] kernel

Press application number for help or 'q' to quit
--> 8
Traceback (most recent call last):
  File "/usr/bin/tracer", line 34, in <module>
    tracer.main.run()
  File "/usr/lib/python3.8/site-packages/tracer/main.py", line 45, in run
    return router.dispatch()
  File "/usr/lib/python3.8/site-packages/tracer/resources/router.py", line 56, in dispatch
    controller.render_interactive()
  File "/usr/lib/python3.8/site-packages/tracer/controllers/default.py", line 109, in render_interactive
    helper_controller.print_helper(filtered[int(answer) - 1], self.args)
  File "/usr/lib/python3.8/site-packages/tracer/controllers/helper.py", line 48, in print_helper
    package = manager.provided_by(app)
  File "/usr/lib/python3.8/site-packages/tracer/resources/PackageManager.py", line 63, in provided_by
    return self.package_managers[0].provided_by(app)
  File "/usr/lib/python3.8/site-packages/tracer/packageManagers/rpm.py", line 129, in provided_by
    package = self._file_provided_by(process.exe)
  File "/usr/lib/python3.8/site-packages/tracer/packageManagers/rpm.py", line 148, in _file_provided_by
    p = Package(pkg[rpm.RPMTAG_NAME].decode())
AttributeError: 'str' object has no attribute 'decode'
$
----