# spacepy.pybats.PbData

class `spacepy.pybats.``PbData`(*args, **kwargs)

  The base class for all PyBats data container classes. Inherits from `spacepy.datamodel.SpaceData` but has additional methods for quickly exploring an SWMF dataset.

  Just like `spacepy.datamodel.SpaceData` objects, PbData objects work just like dictionaries except they have special attr dictionary attributes for both the top-level object and most values. This means that the following syntax can be used to explore a generic PbData object:

  >>>print obj.keys() >>>print obj.attrs >>>value = obj[key]

  Printing PbData objects will produce a tree of contents and attributes; calling `self.listunits()` will print all values that have the ‘units’ attribute and the associated units. Hence, it is often most instructive to use the following two lines to quickly learn a PbData’s contents:

  >>>print obj >>>obj.listunits()

  PbData is the main organizational tool for Pybats datasets, so the information here is applicable to nearly all Pybats classes.