Only tested on iOS 9.0.2, ARM64, untethered jailbreak.
Do not use it on tethered jailbreak device, it may break the system, and cause white apple.
If you do want to use it on tethered jailbreak device, I suggest that unpacking deb and install it manually, make sure not overriding any system library.
Install
dpkg -i python-v2.7.6-proteas-2015-11-30.deb
dpkg -i lldb-v3.8.0-proteas-2015-12-16.deb
Uninstall
dpkg -r python
dpkg -r lldb
Known Issues
omit messages which outputting to stdout & stderr.