diffpy.structure/src/diffpy/structure/structureerrors.py at 3.3.1 · diffpy/diffpy.structure · GitHub

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#!/usr/bin/env python

##############################################################################

# diffpy.structure by DANSE Diffraction group

# Simon J. L. Billinge

# File coded by: Pavol Juhas

# See AUTHORS.txt for a list of people who contributed.

# See LICENSE_DANSE.txt for license information.

##############################################################################

"""Exceptions used in Structure package."""

class StructureFormatError(Exception):

"""Exception for failed IO from Structure file."""

pass

class LatticeError(Exception):

"""Exception for impossible lattice parameters."""

pass

class SymmetryError(Exception):

"""Exception raised for invalid symmetry operations."""

pass