pdbpp is not working when installed from this repo in existing virtualenv

[bretello]

How to troubleshoot

• If it is an existing virtualenv, try installing using pip install -U git+https://github.com/bretello/pdbpp, using the -U/--upgrade flag to make sure that the dependencies are installed/updated
• make sure that the dependencies (fancycompleter and pyrepl) have been installed from https://github.com/bretello/fancycompleter and https://github.com/bretello/pyrepl,