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structureerrors.py
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35 lines (25 loc) · 880 Bytes
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#!/usr/bin/env python
##############################################################################
#
# diffpy.structure by DANSE Diffraction group
# Simon J. L. Billinge
# (c) 2006 trustees of the Michigan State University.
# All rights reserved.
#
# 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