Repo to be listed in PROJECTS.rst and issue with arrow-keys .

Hello,
Repo to be listed in PROJECTS.rst:
Repo:Penta a command interpreter written in python. can be use as a replacement to cmd.
also i wanted to ask,since i needed TAB completion for my project(Penta),i needed the readline module and it wasn't available crossplatform.so i got my hands on python-prompt-toolkit and it's an excellent library.it solved my TAB completion problem BUT
now the arrow keys(UP/DOWN) are not working i.e before using the prompt-toolkit for my user input ,pressing UP/DOWN keys would bring previously used commands(like if i type cd and then help,pressing UP key would bring the cd command) BUT now whenever i press UP/DOWN keys ,nothing happens.
is there a workaround around this ,if any then any help is greatly appreciated
Thank you

Start by reading the Penta integration with prompt-toolkit and the PROJECTS.rst listing mentioned in the report. Reproduce the issue with TAB completion enabled, then inspect how prompt-toolkit handles UP/DOWN history keys. Done means the command history works again and the Penta repository is listed as requested.