Python exceptions arise from either system-related problems, such
as a disk or network error, or from programming errors, such as numeric
overflow or reference to an index that does not exist.
Standard Python exceptions are not described in this guide and
are not listed as possible exceptions in the
Abaqus Scripting Reference Guide.
Look at the standard Python documentation on the official Python website
(http://www.python.org) for a list of standard Python exceptions.
Standard exceptions are described in the Built-in
Exceptions section of the Python Library
Reference.