mahmoud/glom

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

2163 stars · 77 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

glom is a Python library and CLI for declaratively accessing, transforming, and restructuring nested data structures like dicts, lists, and objects. It provides path-based access with readable error messages and a command-line tool for working with JSON, YAML, TOML, and Python data.

Use cases

• extract nested fields from api responses
• transform deeply nested dictionaries in python
• query files from the command line
• restructure nested data declaratively
• get better error messages when accessing missing nested keys
• flatten and reshape nested config data
• debug and explore nested data structures interactively

When to choose

• you frequently access or reshape deeply nested dicts, lists, or objects in Python
• you want declarative, reusable data transformation specs instead of chained indexing
• you need a quick CLI to query and transform JSON/YAML/TOML files
• unclear errors from nested key access are slowing you down

When to avoid

• your data is flat or only one level deep - plain dict access is simpler
• you need high-performance bulk ETL over huge datasets
• you prefer schema validation libraries like pydantic for structuring data
• you're working outside the Python ecosystem

Facets

library · maturity active

serialization cli developer-tools developer-tools apis python cli cross-platform nested-data data-transformation declarative path-access yaml toml data-engineering command-line

Member repositories

For agents

markdown · JSON · MCP: product_card(name="mahmoud/glom")