parametrize

library0.1.1pypypi✓ verified 84d ago

A drop-in replacement for @pytest.mark.parametrize that works with unittest.TestCase classes, enabling parameterized tests without needing pytest. Current version 0.2.0. Development appears low-activity.

testing

pip install parametrize

github ↗package ↗

INSTALL

IMPORT

SIG · PARAMETRIZE

parametrize

testingpythonv0.1.1

Install

1.5s avg

Import

33ms

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 v0.1.1 · 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 0.032s · 17.8MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.5s · import 0.034s · 18MB

16MB installed

● package 16MB

Code

Verified usage

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

parametrize

✓ from parametrize import parametrize

✗ import parametrize

Direct import without submodule leads to AttributeError on parametrize decorator.

Basic usage with unittest.TestCase showing parameterized tests.

import unittest from parametrize import parametrize class TestMath(unittest.TestCase): @parametrize('a,b,expected', [ (1, 1, 2), (2, 2, 4), (3, 5, 8) ]) def test_add(self, a, b, expected): self.assertEqual(a + b, expected) if __name__ == '__main__': unittest.main()

Debug

Known issues

deprecatedparametrize is not actively maintained; consider using pytest's built-in parametrize directly if you can migrate tests away from unittest.TestCase.

fix

Use @pytest.mark.parametrize and run tests with pytest instead of unittest.

affects: all

gotchaThe decorator must be placed above the method definition, not below. Placing it below will silently not work.

fix

Ensure @parametrize is directly above the test method, with no other decorator in between.

affects: all

gotchaArgument names in the string must exactly match method parameters. A mismatch will cause a TypeError at test execution.

fix

Check that the comma-separated argument names match the method signature.

affects: all

Errors

Common errors & fixes

AttributeError: module 'parametrize' has no attribute 'parametrize'

Import using import parametrize instead of from parametrize import parametrize.

fix

from parametrize import parametrize

TypeError: test_add() missing 2 required positional arguments: 'b' and 'expected'

Argument names in the decorator string do not match method parameters, or the tuple lengths mismatch.

fix

Ensure the argument names string (e.g., 'a,b,expected') matches method parameters exactly.

ValueError: not enough values to unpack (expected x, got y)

Number of values in a test case tuple does not match the number of argument names.

fix

Each test tuple must have exactly as many elements as argument names.

Upgrade

Version history

0.1.1latest on PyPI · released May 9, 2021

Audit

Dependencies

No dependency data recorded yet.

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/MrMrRobat/parametrize ↗

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