asserts

library0.14.0pypypi✓ verified 83d ago

A standalone assertions library providing a rich set of assertion functions beyond unittest, with support for JSON subset checking, datetime assertions, regex, and context managers. Current version 0.14.0, requires Python >=3.10, released irregularly.

testing

pip install asserts

github ↗package ↗changelog ↗

INSTALL

IMPORT

SIG · ASSERTS

asserts

testingpythonv0.14.0

Install

1.7s avg

Import

—

Disk

16MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.14.0 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.000s · 18.2MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.7s · import 0.000s · 19MB

16MB installed

● package 16MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

assert_almost_equal

✓ from asserts import assert_almost_equal

✗ from asserts import assert_equals

assert_between

✓ from asserts import assert_between

assert_boolean_true

✓ from asserts import assert_boolean_true

Basic usage: use assert_equals for equality, assert_raises as a context manager for exception testing.

from asserts import assert_equals, assert_raises def test_addition(): assert_equals(2 + 2, 4) with assert_raises(ValueError): int('abc')

Debug

Known issues

breakingPython 3.8 and 3.9 support dropped in 0.14.0. Requires Python >=3.10.

fix

Upgrade to Python 3.10+ or pin asserts<0.14.0.

affects: >=0.14.0

deprecatedExists is deprecated since 0.13.0; use Present or Absent instead.

fix

Replace Exists with Present for existence or Absent for non-existence.

affects: >=0.13.0

gotchaassert_raises and assert_warns are context managers, not decorators. Must use 'with' statement.

fix

Use 'with assert_raises(Exception):' pattern.

affects: all

breakingassert_datetime_about_now and assert_datetime_about_now_utc now raise AssertionError instead of TypeError for timezone-aware datetimes.

fix

Ensure datetime arguments are naive or adjust exception handling.

affects: >=0.14.0

Upgrade

Version history

0.14.0latest on PyPI · released Nov 17, 2025

Audit

Dependencies

No dependency data recorded yet.

Agent activity

19 hits · last 30 days

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OpenAI (training)

Resources

githubhttps://github.com/srittau/python-asserts ↗

packagehttps://pypi.org/project/asserts/ ↗

changeloghttps://github.com/srittau/python-asserts/blob/main/CHANGELOG.md ↗