Twine
Twine: A focused, open-source publisher for Python packages—not a dependency manager. Ranked #25 of 27 in Python Package Managers by our editors (6.3/10); pricing: Free plan; best for publishing Python distributions to package indexes.
At a glance
- Editor score6.3 / 10
- PricingFree plan
- Best forPublishing Python distributions to package indexes
- Free planYes
- Paid fromFree
- Lockfile supportNo
- Facts checked20 Sep 2026
Where it wins
- Uploads source and binary artifacts to PyPI, TestPyPI, and other indexes
- Validates metadata and long-description rendering before upload
- Supports signing, attestations, HTTPS, .pypirc, and environment variables
Where it doesn't
- Does not resolve dependencies or manage Python environments
- Does not provide lockfile support or dependency groups
- Focused on publishing rather than broader package management
Our verdict on Twine
Twine is an open-source command-line utility for publishing Python packages to PyPI and other Python package indexes. It is designed for Python developers and release automation workflows that need to upload source and binary distribution artifacts independently of the build system. The tool supports Windows, macOS, and Linux, making it suitable for cross-platform publishing tasks.
Twine’s strongest capability is its publishing workflow. It supports PyPI, TestPyPI, devpi, and configurable repository names and URLs, including private package indexes. Before uploading, it can check distribution metadata and verify long-description rendering. Upload workflows can also skip existing files, which is useful when working with repositories that already contain some artifacts. Configuration can be supplied through .pypirc files or environment variables, while verified HTTPS connections support secure repository interaction.
For release integrity, Twine supports GPG signing, pre-signed files, and upload attestations. That gives teams options for adding verification steps around package publication without tying uploads to a specific build system. Its scope is intentionally narrow: Twine publishes distributions, but it does not resolve dependencies, manage environments, provide lockfiles, or organize dependency groups. Choose it when package publication is the main requirement, especially for PyPI, TestPyPI, or alternative index workflows. Choose a broader package management tool when dependency resolution or environment management is central to the workflow.
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Twine pricing
Twine fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Lockfile support | No |
| Environment management | No |
| Package publishing | Yes |
| Private registry | Yes |
| Dependency groups | No |
| Supported platforms | Cross-platform |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 4 integrations: PyPI, TestPyPI, devpi, Python package indexes |
| Pricing | Free plan |
| Website | twine.readthedocs.io |
| Facts checked | 20 Sep 2026 |
Twine integrations
Twine lists 4 integrations on its own site.
- PyPI
- TestPyPI
- devpi
- Python package indexes
Alternatives to Twine
- uvAn open-source toolkit for managing modern Python projects from dependencies to publishing.9.3
- PoetryA focused open-source workflow for resolving, isolating, building, and publishing Python projects.9.1
- PDMA standards-focused manager for reproducible environments, workspaces, and private indexes.9.0
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The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Twine for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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