configurator
A library for building a configuration store from one or more layered configuration sources
Decision gist · record as of 2026-08-14
Yes, for stable configuration-management needs. The package is lightweight, has no dependencies, and covers the common case of layering multiple config sources well. Dormant maintenance is not a blocker if your configuration requirements are straightforward and unlikely to change. Consider alternatives if you need active development, advanced features, or ongoing support.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.6 or later.
- Optional YAML and TOML support requires installing extras: pip install configurator[yaml,toml].
- Low install friction with no runtime dependencies.
License · maintenance · safety
MIT (permissive) — MIT license is permissive, allowing commercial and private use with minimal restrictions. You may use, modify, and distribute this package freely as long as you include the original license notice.
last release 2023-09-13 (1066 days) · last repo commit 2024-05-05 · 42 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 105,514 downloads/mo, #12,694 on PyPI
Alternatives
Verify before relying
pip install configurator[yaml,toml]
from configurator import Config
defaults = Config({'threads': 1, 'cache': {'location': '/tmp'}})
system = Config.from_path('/etc/config.yaml')
config = defaults + system
print(config.threads)- Whether the package handles circular references or deeply nested configuration merging edge cases
- Performance characteristics with very large configuration files or many merge operations
- Active maintenance timeline and whether dormant status affects long-term usability
What it is and what it does
Configurator is a Python library that assembles configuration from multiple layered sources into a single, unified store. It accepts configuration files (YAML, TOML, JSON), environment variables, command-line arguments, and plain Python dictionaries, merging them in order so later sources override earlier ones. The resulting configuration is exposed as nested Python objects, making it easy to access values like `config.cache.location` and to validate the entire schema using standard Python validation libraries.
The library is designed for applications that need flexible configuration management without heavy dependencies. It has no runtime dependencies and installs quickly. It's particularly useful when you want sensible defaults, system-wide configuration files, per-user overrides, and environment-based tweaks all working together in a predictable order.
Use it for
- Building a multi-tier config system where defaults are overridden by system config, then user config, then environment variables
- Loading application settings from YAML or TOML files and merging them with command-line flags
- Extracting configuration from environment variables with type conversion and required-field validation
- Preparing configuration data as plain Python dicts for validation with schema libraries
- Managing per-deployment configuration by layering environment-specific files
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, for stable configuration-management needs.
The package is lightweight, has no dependencies, and covers the common case of layering multiple config sources well. Dormant maintenance is not a blocker if your configuration requirements are straightforward and unlikely to change. Consider alternatives if you need active development, advanced features, or ongoing support.
Install
configurator on PyPI
Before you install
Low install friction with no runtime dependencies. Maintenance is dormant—last release was 1066 days ago, though the repository remains active with a recent commit in May 2024. Suitable for stable use cases that don't require ongoing feature development.
Requires Python 3.6 or later. Optional YAML and TOML support requires installing extras: pip install configurator[yaml,toml].
License in practice
MIT license is permissive, allowing commercial and private use with minimal restrictions. You may use, modify, and distribute this package freely as long as you include the original license notice.
Quickstart
pip install configurator[yaml,toml]
from configurator import Config
defaults = Config({'threads': 1, 'cache': {'location': '/tmp'}})
system = Config.from_path('/etc/config.yaml')
config = defaults + system
print(config.threads)Verify before relying
- Whether the package handles circular references or deeply nested configuration merging edge cases
- Performance characteristics with very large configuration files or many merge operations
- Active maintenance timeline and whether dormant status affects long-term usability
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.6 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Dormant 1,066 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 105,514 / month, #12,694 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Intended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseProgramming Language :: Python :: 3 |
Evidence: configurator-3.2.0-py3-none-any.whl
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See also config-parser · envier · pyconfigurator · confuse · bestconfig · lib-layered-config · jsonargparse · dynaconf · vyper-config · donfig