types-assertpy
Typing stubs for assertpy
Decision gist · record as of 2026-08-14
Yes, if you use static type checking with this testing library. Install it as a dev dependency to get type safety in your test code. No installation friction and no known security issues. Skip it only if you don't use static type checking or don't use this library.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later.
- Low friction installation with no runtime dependencies.
- Actively maintained as part of typeshed; last commit on 2026-08-14.
License · maintenance · safety
Apache-2.0 (permissive) — Apache-2.0 permissive license allows use in most projects without significant restrictions.
last release 2026-05-18 (88 days) · last repo commit 2026-08-14 · 37 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 146,528 downloads/mo, #11,097 on PyPI
Alternatives
Verify before relying
pip install types-assertpy
# Type checkers now understand the testing library's API
from assertpy import assert_that
assert_that([1, 2, 3]).contains(2)- Whether this stub package is automatically discovered by type checkers or requires explicit configuration
- Compatibility with versions of the target library outside the 1.1.* series
- Whether installation alongside the target library is required or optional
What it is and what it does
types-assertpy is a type stub package that provides type annotations for a testing assertion library. It contains type information that allows mypy 2.1.0, pyright 1.1.409, and other static type checkers to understand and validate code using the library's fluent assertion API. The stubs are generated from typeshed, the community-maintained repository of type information for Python packages, and target version 1.1.*.
You install this as a development dependency to enable type checking in test code. Type checkers will use these stubs to catch type errors at analysis time rather than runtime, providing IDE autocomplete and inline documentation for the library's methods.
Use it for
- Enable type checkers to validate test files that use the target library's assertions
- Catch type mismatches in assertion chains before running tests
- Provide IDE autocomplete and inline documentation for assertion methods
- Support strict type checking workflows in projects using this testing library
- Validate assertion arguments match expected types in CI/CD pipelines
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you use static type checking with this testing library.
Install it as a dev dependency to get type safety in your test code. No installation friction and no known security issues. Skip it only if you don't use static type checking or don't use this library.
Install
types-assertpy on PyPI
Before you install
Low friction installation with no runtime dependencies. Actively maintained as part of typeshed; last commit on 2026-08-14.
Requires Python 3.10 or later.
License in practice
Apache-2.0 permissive license allows use in most projects without significant restrictions.
Quickstart
pip install types-assertpy
# Type checkers now understand the testing library's API
from assertpy import assert_that
assert_that([1, 2, 3]).contains(2)Verify before relying
- Whether this stub package is automatically discovered by type checkers or requires explicit configuration
- Compatibility with versions of the target library outside the 1.1.* series
- Whether installation alongside the target library is required or optional
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Actively maintained 88 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 146,528 / month, #11,097 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Programming Language :: Python :: 3Typing :: Stubs Only |
Evidence: types_assertpy-1.1.0.20260518-py3-none-any.whl
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See also types-cffi · types-mock · types-aws-xray-sdk · assertpy · types-greenlet · types-grpcio-health-checking · types-PySocks · optype · types-pexpect · types-vobject