{"categories":[{"label":"Application Frameworks","url":"https://skillfed.io/packages/category/software-development-libraries-application-frameworks/5"}],"enrichment":{"capability":"MultiMapping provides special mapping objects used internally by Zope, particularly in ZRDB, that support multiple layers of key lookups with fallback behavior.","skillfed_tags":["zope-ecosystem","layered-lookup"],"use_cases":["Building layered configuration systems where keys resolve through multiple fallback dictionaries.","Implementing request-scoped variable lookup in Zope web applications.","Supporting ZRDB database query parameter resolution with multiple scopes.","Creating namespace hierarchies where inner scopes shadow outer ones."],"what_it_does":"MultiMapping is a specialized data structure from the Zope ecosystem that implements multi-level dictionary-like objects. It allows you to stack multiple mappings and look up keys across them in order, with fallback to the next layer if a key is not found. The package is mature (first released in 2010) and is primarily used internally by Zope components like ZRDB for managing layered configuration or request-scoped data.\n\nThe package depends only on ExtensionClass and is available as a pure-Python wheel, making installation straightforward. It supports modern Python versions (3.10\u20133.14) and both CPython and PyPy. Unless you are working directly with Zope internals or ZRDB, you are unlikely to need this package directly\u2014it is typically pulled in as a transitive dependency of larger Zope applications.","worth_installing":"Yes, if you are working with Zope or ZRDB and need its multi-level mapping behavior. No, if you are not already in the Zope ecosystem\u2014standard Python dictionaries or ChainMap cover most use cases. The package is actively maintained, has no known vulnerabilities, and installs cleanly, but its utility is narrow and domain-specific."},"id":"multimapping","links":{"html":"https://skillfed.io/packages/multimapping","md":"https://skillfed.io/packages/multimapping.md","pypi":"https://pypi.org/project/multimapping/"},"maintenance":{"status":"active"},"meta":{"latest_release":"2026-01-23","license_spdx":null,"license_treatment":"unclear","name":"MultiMapping","python_support":"supports_current","summary":"Special MultiMapping objects used in Zope."},"popularity":{"monthly_downloads":130367,"position":11644,"tier":"top_15000"},"security":{"n_vulnerabilities":0},"version":"5.1"}