Issue with bento when NOT using virtualenv

[immortal-tofu]

I don't know if it'srelated to bento or pycrypto/pyes/...
I'm using docker to deploy a python app. Using a "python setup.py develop" fails when installing some dependencies.

Downloading https://pypi.python.org/packages/source/p/pyes/pyes-0.90.1.tar.gz#md5=b54f76837b14fc76ba7b125badb8d5fc
Processing pyes-0.90.1.tar.gz
Running pyes-0.90.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-F8KXrW/pyes-0.90.1/egg-dist-tmp-uzc1Q7
error: bento.info: No such file or directory

If I install these dependencies via pip, it works. If I exec this setup.py in a virtualenv, it works too. I tried on my local workstation (mint 17.1) and my docker image (ubuntu 12.04) and I reproduce the bug.

I don't know it's related to pyes, because it happens with many lib (pyes, pycrypto, libcouchbase, ...)

For now, I install dependencies via pip install -e . and it works.