Data input
==========

.. py:class:: snapshot

   The module of :py:class:`snapshot.read`.


MST reader
----------

.. py:class:: snapshot.read(filename)

   The constructor of MST file parser object.
	  
   :param str filename: The file name of MST file.

   Example::
   
      mst = pygamd.snapshot.read("lj.mst")
      # builds up a parser object for the input MST file.