Python Bundler
Simplifies virtualenv and pip usage.
Aims to be compatible with all existing projects already carrying a "requirements.txt" in their source.
Inspired by http://gembundler.com/
Howto
- easy_install pbundler
- cd into your project path
- Run pbundle. It will install your project's dependencies into a fresh virtualenv.
To run commands with the activated virtualenv:
pbundle exec bash -c 'echo "I am activated. virtualenv: $VIRTUAL_ENV"'
Or, for python programs:
pbundle py ./debug.py
If you don't have a requirements.txt yet but have an existing project, try this:
pip freeze > requirements.txt
If you start fresh, try this for a project setup:
mkdir myproject && cd myproject
git init
pbundle init
Instructions you can give your users:
git clone git://github.com/you/yourproject.git
easy_install pbundler
pbundle
If you rather like pip, and you're sure your users already have pip:
git clone git://github.com/you/yourproject.git
pip install pbundler
pbundle
Making python scripts automatically use pbundle py
Replace the shebang with "/usr/bin/env pbundle-py". Example:
#!/usr/bin/env pbundle-py
import sys
print sys.path
WSGI/Unicorn example
start-unicorn.sh:
#!/bin/bash
cd /srv/app/flaskr
PYTHONPATH=/srv/app/wsgi exec pbundle exec gunicorn -w 5 -b 127.0.0.1:4000 -n flaskrprod flaskr:app
Custom environment variables
If you need to set custom ENV variables for the executed commands in your local copy, do this:
echo "DJANGO_SETTINGS_MODULE='mysite.settings'" >> .pbundle/environment.py
TODO
- Build inventory from what is installed, instead of requirements.last file
- Handle failed egg installs
- Really remove all no longer needed packages from virtualenv
- Reorganize library code
