/usr/share/system-config-printer/troubleshoot/ is in system-config-printer-gnome 1.5.7+20160212-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/system-config-printer/troubleshoot/CheckLocalServerPublishing.py
/usr/share/system-config-printer/troubleshoot/CheckNetworkServerSanity.py
/usr/share/system-config-printer/troubleshoot/CheckPPDSanity.py
/usr/share/system-config-printer/troubleshoot/CheckPrinterSanity.py
/usr/share/system-config-printer/troubleshoot/CheckSELinux.py
/usr/share/system-config-printer/troubleshoot/CheckUSBPermissions.py
/usr/share/system-config-printer/troubleshoot/ChooseNetworkPrinter.py
/usr/share/system-config-printer/troubleshoot/ChoosePrinter.py
/usr/share/system-config-printer/troubleshoot/DeviceListed.py
/usr/share/system-config-printer/troubleshoot/ErrorLogCheckpoint.py
/usr/share/system-config-printer/troubleshoot/ErrorLogFetch.py
/usr/share/system-config-printer/troubleshoot/ErrorLogParse.py
/usr/share/system-config-printer/troubleshoot/LocalOrRemote.py
/usr/share/system-config-printer/troubleshoot/Locale.py
/usr/share/system-config-printer/troubleshoot/NetworkCUPSPrinterShared.py
/usr/share/system-config-printer/troubleshoot/PrintTestPage.py
/usr/share/system-config-printer/troubleshoot/PrinterStateReasons.py
/usr/share/system-config-printer/troubleshoot/QueueNotEnabled.py
/usr/share/system-config-printer/troubleshoot/QueueRejectingJobs.py
/usr/share/system-config-printer/troubleshoot/RemoteAddress.py
/usr/share/system-config-printer/troubleshoot/SchedulerNotRunning.py
/usr/share/system-config-printer/troubleshoot/ServerFirewalled.py
/usr/share/system-config-printer/troubleshoot/Shrug.py
/usr/share/system-config-printer/troubleshoot/VerifyPackages.py
/usr/share/system-config-printer/troubleshoot/Welcome.py
/usr/share/system-config-printer/troubleshoot/__init__.py
/usr/share/system-config-printer/troubleshoot/base.py