# cfdm functions¶

Version 1.8.8.0 for version 1.8 of the CF conventions.

 cfdm.read Read field constructs from a dataset. cfdm.write Write field constructs to a netCDF file.
 cfdm.CF The version of the CF conventions. cfdm.atol The tolerance on absolute differences when testing for numerically tolerant equality. cfdm.rtol The tolerance on relative differences when testing for numerically tolerant equality. cfdm.log_level The minimal level of seriousness of log messages which are shown. cfdm.configuration View or set any number of constants in the project-wide configuration. cfdm.ATOL Alias for cfdm.atol. cfdm.RTOL Alias for cfdm.rtol. cfdm.LOG_LEVEL Alias for cfdm.log_level.
 cfdm.abspath Return a normalised absolute version of a file name. cfdm.environment Return the names, versions and paths of all dependencies. cfdm.example_field Return an example field construct. cfdm.implementation Return a container for the CF data model implementation.