lazr.uri
A self-contained, easily reusable library for parsing, manipulating, and generating URIs.
Decision gist · record as of 2026-08-14
Yes. The package is lightweight (no dependencies), actively maintained, production-stable, and solves a common problem with a self-contained implementation. The LGPL v3 copyleft license requires you to disclose modifications and use compatible licensing if you distribute derivatives, but poses no barrier to internal use. Install it if you need robust URI parsing and manipulation without external dependencies.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.8 or later.
- Installs with no runtime dependencies and maintains active status with a recent release.
License · maintenance · safety
LGPL v3 (copyleft) — Licensed under LGPL v3 (copyleft); you must disclose source modifications and make your code available under compatible terms if you distribute this package or derivatives.
last release 2026-08-01 (13 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 367,440 downloads/mo, #7,196 on PyPI
Alternatives
Verify before relying
pip install lazr.uri
from lazr.uri import URI
uri = URI('https://example.com/path?query=value')
print(uri.scheme, uri.host, uri.path)- Whether the library implements RFC 3986 or another specific URI standard
- Performance characteristics for large-scale URI parsing or generation
- Specific URI schemes or edge cases the library handles or does not handle
What it is and what it does
lazr.uri is a standalone library for working with URIs—parsing them into components, modifying those components, and reconstructing or generating new URIs. It has no runtime dependencies, making it lightweight and easy to embed in other projects. The library supports modern Python versions from 3.8 through 3.14 and is marked as production-stable.
The package is useful when you need to programmatically extract parts of a URI (scheme, host, path, query parameters), build URIs from scratch, or manipulate existing ones. It handles the syntax and structure of URIs so you don't have to parse them manually or rely on string splitting. Since it carries no external dependencies, adding it to a project introduces minimal installation friction.
Use it for
- Parse and extract components (scheme, host, path, query) from URIs in web applications or APIs.
- Generate or manipulate URIs programmatically when building URLs for HTTP requests or links.
- Validate and normalize URI strings in data processing or web scraping workflows.
- Handle URI encoding and decoding in tools that work with web standards or REST APIs.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The package is lightweight (no dependencies), actively maintained, production-stable, and solves a common problem with a self-contained implementation. The LGPL v3 copyleft license requires you to disclose modifications and use compatible licensing if you distribute derivatives, but poses no barrier to internal use. Install it if you need robust URI parsing and manipulation without external dependencies.
Install
lazr-uri on PyPI
Before you install
Installs with no runtime dependencies and maintains active status with a recent release.
Requires Python 3.8 or later.
License in practice
Licensed under LGPL v3 (copyleft); you must disclose source modifications and make your code available under compatible terms if you distribute this package or derivatives.
Quickstart
pip install lazr.uri
from lazr.uri import URI
uri = URI('https://example.com/path?query=value')
print(uri.scheme, uri.host, uri.path)Verify before relying
- Whether the library implements RFC 3986 or another specific URI standard
- Performance characteristics for large-scale URI parsing or generation
- Specific URI schemes or edge cases the library handles or does not handle
Package facts
| License | LGPL v3 copyleft |
| Python support | Supports the current Python release >=3.8 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 13 days since the last release |
| First released | |
| Downloads | 367,440 / month, #7,196 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)Operating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9 |
Evidence: lazr_uri-4.0.0-py3-none-any.whl
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See also arcp · lazr.config · lazr.restfulclient · wadllib · lazr.delegates · python-datauri · uritools · URLObject · uritemplate · prison