Modules implementing the “Extract” step of the PUDL ETL pipeline.

Each module in this subpackage implements data extraction for a single data source from the PUDL Data Sources. This process begins with the original data as retrieved by the pudl.workspace subpackage, and ends with a dictionary of “raw” pandas.DataFrame`s, that have been minimally altered from the original data, and are ready for normalization and data cleaning by the data source specific modules in the :mod:`pudl.transform subpackage.