BTrees | Python Package Wiki

Based on how often these packages appear together in public requirements.txt files on GitHub.

persistent	Translucent persistent objects
zodburi	Construct ZODB storage instances from URIs.
ZEO	ZEO - Single-server client-server database server for ZODB
zodbpickle	Fork of Python 2 and 3 pickle module.
nine	Python 2 / 3 compatibility, like six, but favouring Python 3
pyramid_exclog	A package which logs to a Python logger when an exception is raised by a Pyramid application
zdaemon	Daemon process control library and tools for Unix-based systems
ColanderAlchemy	Autogenerate Colander schemas based on SQLAlchemy models.
pyramid_beaker	Beaker session factory backend for Pyramid
mozsvc	Various utilities for Mozilla apps
ropemode	ropemode, a helper for using rope refactoring library in IDEs
Kajiki	Fast XML-based template engine with Genshi syntax and Jinja blocks
py3status	py3status: an extensible i3status wrapper written in python
i3-py	tools for i3 users and developers
WSGIProxy	HTTP proxying tools for WSGI apps
zope.testrunner	Zope testrunner script.
pyramid_multiauth	pyramid_multiauth
interruptingcow	A watchdog that interrupts long running code.
devpi	(deprecated, install devpi-server, devpi-client, devpi-web instead)

Proportion of downloaded versions in the last 3 months (only versions over 1%).

pip install BTrees==4.9.2