If we want use S3 to host Python packages, how can we tell pip where to find the newest version? : <p>we are trying to come up with a solution to have AWS S3 to host and distribute our Python packages. </p>

<p>Basically what we want to do is using "python3 setup.py bdist_wheel" to create a wheel. Upload it to S3. Then any server or any machine can do "pip install $<a href="http://path/on/s3" rel="noreferrer">http://path/on/s3</a>". (including a virtualenv in AWS lambda)
(We've looked into Pypicloud and thought it's an overkill.)</p>

<p>Creating package and installing from S3 work fine. There is only one issue here: we will release new code and give them different versions. If we host our code on Pypi, you can upgrade some packages to their newest version by calling "pip install package --upgrade". </p>

<p>But if you host your packages on S3, how do you let pip know there's a newer version exists? How do you roll back to an older version by simply giving pip the version number? Is there a way to let pip know where to look for different version of wheels on S3?</p>
