Python 3 interface to encode and decode GRIB and BUFR files via the ECMWF
ecCodes library.

Features:
- reads and writes GRIB 1 and 2 files,
- reads and writes BUFR 3 and 4 files,
- supports all modern versions of Python 3.7, 3.6, 3.5 and PyPy3,
- works on most Linux distributions and MacOS, the ecCodes C-library is the only
  system dependency,
- PyPI package with no install time build (binds with CFFI ABI level, in-line
  mode),
- supports writing the index of a GRIB file to disk, to save a full-file scan on
  open.