Exceptions

exceptions ¶

Assembly:                Mappy
Filename:                exceptions.py
Author:                  Terry D. Eppler
Created:                 05-31-2022

Last Modified By:        Terry D. Eppler
Last Modified On:        05-01-2025

       Mappy is a python framework encapsulating the Google Maps functionality.
       Copyright ©  2022  Terry Eppler

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

You can contact me at: terryeppler@gmail.com or eppler.terry@epa.gov

exception.py

Classes¶

MappyError ¶

Bases: Exception

Provide the base exception type for the Mappy framework.

Purpose

Defines the common parent for framework-specific exceptions raised by Mappy service wrappers, gateway operations, lookup routines, and Streamlit workflows. Callers can catch this type when they need to handle any known Mappy exception without catching unrelated Python runtime errors.

GatewayError ¶

Bases: MappyError

Represent an unexpected Google Maps gateway failure.

Purpose

Signals failures that occur while issuing requests to external Google Maps services or while interpreting gateway responses. The exception separates transport, status, retry, and response-normalization failures from ordinary not-found lookup outcomes.

NotFound ¶

Bases: MappyError

Represent an unresolved location, place, route, or lookup result.

Purpose

Signals that a requested geospatial lookup completed without producing a usable application result. Service wrappers use this exception to distinguish normal misses from gateway failures, parsing errors, and validation errors.