keyring

https://pypi.org/project/keyring/

The Python keyring library provides an easy way to access the system keyring service from python. It can be used in any application that needs safe password storage.

• macOS Keychain
• Freedesktop Secret Service supports many DE including GNOME (requires secretstorage)
• KDE4 & KDE5 KWallet (requires dbus)
• Windows Credential Locker

I found this tool super helpful when building command line tooling for a mixed-OS team. Store a secret in the system's secret store, whatever that may be.