pyfixbuf is a Python API for libfixbuf, an implementation of the IPFIX protocol used for building collecting and exporting processes. pyfixbuf can be used to write applications, often called mediators, that collect and export IPFIX. Mediators are useful in modifying, filtering, or adding to the contents of a message before forwarding to another IPFIX collection point, or converting IPFIX to another format (text, database, JSON, etc.).