envtools is a productivity suite for virtualenv-based projects. Here are some things you can do:
 
    * addwork, rmwork, and lswork allow you to develop on several projects at once, 
      while only "working on" one.
    * More to come soon...

To install:

    $ python setup.py install

To use addwork/rmwork/lswork:

    # Using virtualenv, start working on your primary project.
    $ workon myfavoriteproject

    # Next, addwork on a dependent module.
    (myfavoriteproject) $ addwork subproject1

    # See how fun:
    (myfavoriteproject) $ lswork
    subproject1
    (myfavoriteproject) $ python -c "from subproject1 import *"

    # Say goodbye
    (myfavrotieproject) $ rmwork subproject1
    (myfavoriteproject) $ lswork
    (myfavoriteproject) $ python -c "from subproject1 import *"
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
    ImportError: No module named subproject1