requirements-parser
This is a small Python module for parsing Pip requirement files.
Decision gist · record as of 2026-08-14
Yes. This is a stable, actively maintained parser with low install friction and no known vulnerabilities. Use it when you need to programmatically read and inspect pip requirement files rather than parsing them manually or with regex.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Low friction install with a single runtime dependency (packaging).
- Actively maintained with a recent release; repository is not archived and has received commits within the last two months.
License · maintenance · safety
Apache-2.0 (permissive) — Licensed under Apache 2.0 (permissive), allowing modification and redistribution with minimal restrictions—suitable for both open-source and commercial use.
last release 2026-06-18 (57 days) · last repo commit 2026-06-18 · 141 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 17,822,865 downloads/mo, #1,103 on PyPI
Alternatives
Verify before relying
pip install requirements-parser
import requirements
with open('requirements.txt', 'r') as fd:
for req in requirements.parse(fd):
print(req.name, req.specs)- Whether the parser handles all edge cases in the current pip requirement file format specification
- Performance characteristics when parsing very large requirement files
What it is and what it does
requirements-parser is a lightweight Python module that reads and parses pip requirement files—the text files that list project dependencies—into structured objects you can inspect programmatically. It accepts either a file-like object or a string and extracts package names, version constraints, and metadata like extras, URLs, and version control references.
The module handles most pip requirement file syntax including editables, version control URIs, egg hashes, subdirectories, and extras. It has a single runtime dependency on packaging and supports Python 3.8 through 3.14. The project is actively maintained and has been in use since its initial release in 2013.
Use it for
- Programmatically inspect and validate requirements.txt files in build or deployment scripts
- Extract dependency metadata for dependency analysis or auditing tools
- Parse requirements files to generate reports or migrate dependencies between formats
- Validate requirement syntax before installation in CI/CD pipelines
- Build tools that need to understand pip dependency specifications
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
This is a stable, actively maintained parser with low install friction and no known vulnerabilities. Use it when you need to programmatically read and inspect pip requirement files rather than parsing them manually or with regex.
Install
requirements-parser on PyPI
Before you install
Low friction install with a single runtime dependency (packaging). Actively maintained with a recent release; repository is not archived and has received commits within the last two months.
License in practice
Licensed under Apache 2.0 (permissive), allowing modification and redistribution with minimal restrictions—suitable for both open-source and commercial use.
Quickstart
pip install requirements-parser
import requirements
with open('requirements.txt', 'r') as fd:
for req in requirements.parse(fd):
print(req.name, req.specs)Verify before relying
- Whether the parser handles all edge cases in the current pip requirement file format specification
- Performance characteristics when parsing very large requirement files
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release <4.0,>=3.8 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagepackaging |
| Maintenance | Actively maintained 57 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 17,822,865 / month, #1,103 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 :: DevelopersIntended Audience :: Information TechnologyLicense :: OSI Approved :: Apache Software LicenseProgramming Language :: Python :: 3Programming 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 :: 3.9Topic :: Software DevelopmentTopic :: Software Development :: Libraries :: Python ModulesTopic :: System :: Software DistributionTyping :: Typed |
Evidence: requirements_parser-0.13.1-py3-none-any.whl
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See also pip-requirements-parser · hatch-requirements-txt · requirementslib · poetry-plugin-export · hashin · git-url-parse · pip-api · cyclonedx-py · tls-parser · cyclonedx-bom