$ $VENV/bin/pip install pyramid_bpython
Ensure the shell is available:
$ $VENV/bin/pshell --list-shells Available shells: bpython python
The shell should be auto-selected when running pshell:
$ $VENV/bin/pshell development.ini
However, if there are multiple shells you can also be explicit:
$ $VENV/bin/pshell -p bpython development.ini