#=============================================================================================
# MODULE DOCSTRING
#=============================================================================================

"""
Module Containing various exception classes raised by Yank.

DESCRIPTION

This module provides functions for building a number of simple test systems for testing purposes.

EXAMPLES


COPYRIGHT

@author Randall J. Radmer <radmer@stanford.edu>
@author John D. Chodera <jchodera@gmail.com>
@author Kim M Branson <kim.branson@gmail.com>

All code in this repository is released under the GNU General Public License.

This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License along with
this program.  If not, see <http://www.gnu.org/licenses/>.

"""
#=============================================================================================
# GLOBAL IMPORTS
#=============================================================================================

#=============================================================================================
# NotImplementedException
#=============================================================================================

#class NotImplementedError(Exception):
    #"""
    #Exception raised for requested functionality that is not currently implemented.

    #Attributes:
        #expression -- input expression in which the error occurred
        #message -- explanation of the error

    #"""
    #def __init__(self, expression):
        #self.expression = expression
        #self.message = "Functionality %s is not currently implemented" % str(self.expression)
        #return