Module datatree

source code

The YapyData.datatree module provides the core class for the handling of simple data classes for the most common data representation languages. The provided core class DataTree provided the Python data types, which comprise the most standard data types.

The derived classes support for the most common data description languages and add therefore the specific constraints and extensions. The package provides these features for low-level libraries of the software stack, therefore depends whenever possible on standard libraries only. It supports low-level read-only access to files and in-memory data. The read data could be modified in-memory only for example in order to superpose higher priority data read from the call options of the command line .

The internal representation of the DDLs is exclusively compatible to the standard json package in accordance to RFC-7159. The supported DDLs of the read files are:

• INI
• JSON
• XML
• YAML

A similar package for higher application layer levels is available by multiconf, which provides sophisticated features such as cross-conversion and mixed-mode applications by modularization, and enhanced processing plugins for various DDLs.

The validation and preparation including cross-conversion is supported by multiconf, while the specifics of the DL is supported by the language module such as jsondata and xmldata.