PeerJ is in my opinion awesome for this type of publications, demonstating the use of a Python library, since they even allow examples and code-bits in the paper.
You can see the preprint here: https://peerj.com/preprints/169v2/
We even got DOI and can be cited as:
2013) FragBuilder: An efficient Python library to setup quantum chemistry calculations on peptides models. PeerJ PrePrints 1:e169v2 http://dx.doi.org/10.7287/peerj.preprints.169v2 (The FragBuilder Python library can be found at GitHub: https://github.com/jensengroup/fragbuilder
I am in the process of making a couple of more blog-posts to demonstrate the use of FragBuilder, stay tuned!