Completely reset TCC services database in macOS

tcc-reset.py

#!/usr/bin/python
"""
Completely reset TCC services database in macOS

Note: Both the system and individual users have TCC databases; run the script as both
      a user and as root to completely reset TCC decisions at all levels.

2018-08-15: Resetting the 'Location' service fails; unknown cause
2018-08-16: Confirmed the 'All' service does not really reset _all_
            services, so individual calls to each service is necessary.
2019-06-04: Still working in 10.15 beta :)
2019-08-16: Added new Catalina services (thanks @frogor)
"""

import subprocess

SERVICES = [
    "Accessibility",
    "AddressBook",
    "All",
    "AppleEvents",
    "Calendar",
    "Camera",
    "ContactsFull",
    "ContactsLimited",
    "Facebook",
    "FileProviderDomain",
    "FileProviderPresence",
    "LinkedIn",
    "Liverpool",
    "Location",
    "MediaLibrary",
    "Microphone",
    "Motion",
    "Photos",
    "PhotosAdd",
    "PostEvent",
    "Reminders",
    "ScreenCapture",
    "ShareKit",
    "SinaWeibo",
    "Siri",
    "SpeechRecognition",
    "SystemPolicyAllFiles",
    "SystemPolicyDesktopFolder",
    "SystemPolicyDeveloperFiles",
    "SystemPolicyDocumentsFolder",
    "SystemPolicyNetworkVolumes",
    "SystemPolicyRemovableVolumes",
    "SystemPolicySysAdminFiles",
    "SysyemPolicyDownloadsFolder",
    "TencentWeibo",
    "Twitter",
    "Ubiquity",
    "Willow",
]


if __name__ == "__main__":
    for service in SERVICES:
        cmd = ["/usr/bin/tccutil", "reset", service]
        try:
            subprocess.check_call(
                cmd, stderr=subprocess.PIPE
            )
            print "Reset", service
        except subprocess.CalledProcessError:
            print "Unable to reset", service

The cause that reseting 'location' fails is because Location Service itens are not managed via TCC database.

All those location items listed under Privacy -> Location Services are managed by the locationd daemon.

They are all configured inside a plist file located at: /var/db/locationd/clients.plist

Line 51, SysyemPolicyDownloadsFolder should be SystemPolicyDownloadsFolder.