slack
a DI container
Decision gist · record as of 2026-08-14
No. The package is abandoned (last commit 2014-05-27) and targets only Python 2.7 and 3.4, both unsupported. High install friction and no runtime dependencies suggest potential packaging issues. Modern alternatives with active maintenance exist for dependency injection in Python. Only consider if you are maintaining legacy Python 2.7 code and have verified compatibility.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Package targets Python 2.7 and 3.4 only; compatibility with modern Python versions is unverified.
- High install friction with no runtime dependencies.
- The package is abandoned—last commit was 2014-05-27, over a decade ago—and classified as Pre-Alpha.
License · maintenance · safety
MIT (permissive) — MIT license is permissive and imposes no restrictions on use, modification, or distribution.
last release 2014-03-26 (4524 days) · last repo commit 2014-05-27
0 known vulnerabilities (OSV.dev, 2026-08-14) · 153,577 downloads/mo, #10,876 on PyPI
Alternatives
Verify before relying
from slack import Container
c = Container()
c.register('component', MyClass)
instance = c.provide('component')- Whether the package actually works on modern Python versions despite targeting only 2.7 and 3.4
- Whether the high install friction is due to a missing wheel or other packaging issue
- Real-world usage patterns and whether the singleton-by-default behavior matches modern DI expectations
What it is and what it does
Slack is a lightweight dependency injection container that manages object lifecycle and dependency resolution. It registers components (classes or factory functions) by name and provides singleton instances on demand, automatically resolving declared dependencies from the container. It also supports partial injection to bind some dependencies while leaving others for later, decorator-based registration, and grouped lifecycle management with reset capabilities.
The package is designed for straightforward DI patterns in Python applications where you need centralized component registration and retrieval. However, it has been abandoned since 2014 and targets only Python 2.7 and 3.4, making it unsuitable for modern Python projects without significant verification of compatibility.
Use it for
- Building small applications that need centralized dependency management without a full framework
- Registering and retrieving singleton services in a monolithic application
- Partial application of functions by pre-binding some dependencies while leaving others open
- Organizing component lifecycle with grouped resets for test isolation or state management
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No.
The package is abandoned (last commit 2014-05-27) and targets only Python 2.7 and 3.4, both unsupported. High install friction and no runtime dependencies suggest potential packaging issues. Modern alternatives with active maintenance exist for dependency injection in Python. Only consider if you are maintaining legacy Python 2.7 code and have verified compatibility.
Install
slack on PyPI
Before you install
High install friction with no runtime dependencies. The package is abandoned—last commit was 2014-05-27, over a decade ago—and classified as Pre-Alpha. It targets Python 2.7 and 3.4, both long out of support.
Package targets Python 2.7 and 3.4 only; compatibility with modern Python versions is unverified.
License in practice
MIT license is permissive and imposes no restrictions on use, modification, or distribution.
Quickstart
from slack import Container
c = Container()
c.register('component', MyClass)
instance = c.provide('component')Verify before relying
- Whether the package actually works on modern Python versions despite targeting only 2.7 and 3.4
- Whether the high install friction is due to a missing wheel or other packaging issue
- Real-world usage patterns and whether the singleton-by-default behavior matches modern DI expectations
Package facts
| License | MIT permissive |
| Python support | Not specified |
| Install friction | High. Source build required |
| Runtime dependencies | None |
| Maintenance | Abandoned 4,524 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 153,577 / month, #10,876 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 2 - Pre-AlphaIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: Python :: 2.7Programming Language :: Python :: 3.4 |
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