GNU Libidn is a fully documented implementation of the Stringprep, Punycode and IDNA specifications. Libidn's purpose is to encode and decode internationalized domain names. The Nameprep, XMPP, SASLprep, and iSCSI profiles are supported.

DPDK is a set of libraries for fast packet processing. Applications run in user-space and communicate directly with dedicated network interfaces.

GROMACS is a versatile package to perform molecular dynamics, i.e. simulate the Newtonian equations of motion for systems with hundreds to millions of particles.

An HDF5 based clone of 'pickle', with a twist: instead of serializing to a pickle file, Hickle dumps to an HDF5 file (Hierarchical Data Format). It is designed to be a "drop-in" replacement for pickle (for common data objects), but is really an amalgam of 'h5py' and 'pickle' with extended functionality.

aioapns is a library designed specifically for sending push-notifications to iOS devices via Apple Push Notification Service. aioapns provides an efficient client through asynchronous HTTP2 protocol for use with Python's asyncio framework.

DPDK is a set of libraries for fast packet processing. Applications run in user-space and communicate directly with dedicated network interfaces.