Add context manager protocol for .NET IDisposable types by den-run-ai · Pull Request #2568 · pythonnet/pythonnet

den-run-ai · 2025-03-23T21:23:55Z

What does this implement/fix? Explain your changes.

Implemented IDisposable based on this discussion:
#79

@microsoft-github-policy-service agree

Checklist

Check all those that are applicable and complete.

Make sure to include one or more tests for your change
If an enhancement PR, please create docs and at best an example
Ensure you have signed the .NET Foundation CLA
Add yourself to AUTHORS
Updated the CHANGELOG

lostmsu · 2025-03-24T05:30:38Z

FYI: tests are not passing

den-run-ai · 2025-03-24T05:45:02Z

This seems not related to this PR @lostmsu

i tested on mac with .net 8

lostmsu · 2025-04-11T04:43:27Z

@den-run-ai This is definitely related to PR, master does not seem to be failing these tests.

michaelblyons · 2025-05-01T17:49:46Z

For anyone else who is annoyed that the test failures do not provoke backtraces on GitHub's UI,¹ here is the output:

_______________________ test_import_all_on_second_time ________________________

    def test_import_all_on_second_time():
        """Test import all attributes after a normal import without '*'.
        Due to import * only allowed at module level, the test body splitted
        to a module file."""
>       from . import importtest

tests\test_import.py:20: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

    import sys
    try:
        del sys.modules["System.IO"]
    except KeyError:
        pass
    
    assert "FileStream" not in globals()
    import System.IO
    from System.IO import *
    
>   assert "FileStream" in globals()
E   AssertionError

tests\importtest.py:13: AssertionError

My (uninitiated) interpretation is that some cruft is left hanging around despite the Dispose() call.

And also lest the test artefacts age away. ↩

filmor · 2026-05-07T17:40:20Z

The test-error is unrelated, it shows up because the test-suite imports FileStream which is used in the import test. I will follow up on this in #2717.

Updated [pythonnet](https://github.com/pythonnet/pythonnet) from 3.0.5 to 3.1.0. <details> <summary>Release notes</summary> _Sourced from [pythonnet's releases](https://github.com/pythonnet/pythonnet/releases)._ ## 3.1.0 ## What's Changed * ci: properly exclude job by @RobPasMue in pythonnet/pythonnet#2542 * `__delitem__` for `IList<T>` and `IDictionary<K,V>` by @lostmsu in pythonnet/pythonnet#2533 * Fix docs workflow by @filmor in pythonnet/pythonnet#2584 * Drop EOLd Python versions by @filmor in pythonnet/pythonnet#2632 * Bump setuptools and adjust license information by @filmor in pythonnet/pythonnet#2633 * Minimal .NET 8 usage changes by @filmor in pythonnet/pythonnet#2634 * Drop performance tests by @filmor in pythonnet/pythonnet#2636 * Properly detect availability of BinaryFormatter by @filmor in pythonnet/pythonnet#2639 * Use last compiler toolset version that support .NET 8 by @filmor in pythonnet/pythonnet#2640 * Add dependabot file by @filmor in pythonnet/pythonnet#2642 * Use official ARM runners by @filmor in pythonnet/pythonnet#2641 * Bump actions/upload-pages-artifact from 3 to 4 by @dependabot[bot] in pythonnet/pythonnet#2644 * Bump actions/setup-python from 2 to 6 by @dependabot[bot] in pythonnet/pythonnet#2646 * Bump actions/checkout from 2 to 5 by @dependabot[bot] in pythonnet/pythonnet#2648 * Bump actions/setup-dotnet from 1 to 5 by @dependabot[bot] in pythonnet/pythonnet#2645 * Use uv and derive as much as possible from the environment, if available by @filmor in pythonnet/pythonnet#2652 * Fixes for the uv CI by @filmor in pythonnet/pythonnet#2654 * Bump astral-sh/setup-uv from 6 to 7 by @dependabot[bot] in pythonnet/pythonnet#2656 * Bump actions/checkout from 5 to 6 by @dependabot[bot] in pythonnet/pythonnet#2663 * Ensure that the tests work even if BinaryFormatter is not available by @filmor in pythonnet/pythonnet#2638 * Bump NUnit3TestAdapter from 5.2.0 to 6.0.0 by @dependabot[bot] in pythonnet/pythonnet#2667 * Fix line endings by @filmor in pythonnet/pythonnet#2668 * Switch to .NET SDK 10 by @lostmsu in pythonnet/pythonnet#2684 * Python 3.14 by @filmor in pythonnet/pythonnet#2611 * CI Improvements by @filmor in pythonnet/pythonnet#2669 * Bump System.Reflection.Emit from 4.3.0 to 4.7.0 by @dependabot[bot] in pythonnet/pythonnet#2694 * Bump pytest from 9.0.2 to 9.0.3 in the uv group across 1 directory by @dependabot[bot] in pythonnet/pythonnet#2705 * CI Improvements by @filmor in pythonnet/pythonnet#2707 * Fix method memleak test by @filmor in pythonnet/pythonnet#2708 * Bump actions/upload-pages-artifact from 4 to 5 by @dependabot[bot] in pythonnet/pythonnet#2709 * Update furo requirement from >=2022.9.15 to >=2025.12.19 by @dependabot[bot] in pythonnet/pythonnet#2711 * Move documentation deps to pyproject.toml by @filmor in pythonnet/pythonnet#2714 * Support .NET Framework 4.6.1 by @Metadorius in pythonnet/pythonnet#2701 * Fix wheel tags by @filmor in pythonnet/pythonnet#2716 * Name missing from __all__ on re-import by @filmor in pythonnet/pythonnet#2717 * Add context manager protocol for .NET IDisposable types by @den-run-ai in pythonnet/pythonnet#2568 * Fix MethodBinding/OverloadMapper memory leak (#691) by @greateggsgreg in pythonnet/pythonnet#2719 * Bump urllib3 from 2.6.3 to 2.7.0 in the uv group across 1 directory by @dependabot[bot] in pythonnet/pythonnet#2723 * Update NUnit by @filmor in pythonnet/pythonnet#2724 * Silence compile-time warnings by @filmor in pythonnet/pythonnet#2725 * Implement support for DLR get/set by @filmor in pythonnet/pythonnet#2706 * Bump idna from 3.13 to 3.15 in the uv group across 1 directory by @dependabot[bot] in pythonnet/pythonnet#2726 ## New Contributors * @RobPasMue made their first contribution in pythonnet/pythonnet#2542 * @dependabot[bot] made their first contribution in pythonnet/pythonnet#2644 * @Metadorius made their first contribution in pythonnet/pythonnet#2701 **Full Changelog**: pythonnet/pythonnet@v3.0.5...v3.1.0 ## 3.1.0-rc1 ## What's Changed * CI Improvements by @filmor in pythonnet/pythonnet#2669 * Bump System.Reflection.Emit from 4.3.0 to 4.7.0 by @dependabot[bot] in pythonnet/pythonnet#2694 * Bump pytest from 9.0.2 to 9.0.3 in the uv group across 1 directory by @dependabot[bot] in pythonnet/pythonnet#2705 * CI Improvements by @filmor in pythonnet/pythonnet#2707 * Fix method memleak test by @filmor in pythonnet/pythonnet#2708 * Bump actions/upload-pages-artifact from 4 to 5 by @dependabot[bot] in pythonnet/pythonnet#2709 * Update furo requirement from >=2022.9.15 to >=2025.12.19 by @dependabot[bot] in pythonnet/pythonnet#2711 * Move documentation deps to pyproject.toml by @filmor in pythonnet/pythonnet#2714 * Support .NET Framework 4.6.1 by @Metadorius in pythonnet/pythonnet#2701 * Fix wheel tags by @filmor in pythonnet/pythonnet#2716 * Name missing from __all__ on re-import by @filmor in pythonnet/pythonnet#2717 * Add context manager protocol for .NET IDisposable types by @den-run-ai in pythonnet/pythonnet#2568 * Fix MethodBinding/OverloadMapper memory leak (#691) by @greateggsgreg in pythonnet/pythonnet#2719 * Bump urllib3 from 2.6.3 to 2.7.0 in the uv group across 1 directory by @dependabot[bot] in pythonnet/pythonnet#2723 * Update NUnit by @filmor in pythonnet/pythonnet#2724 * Silence compile-time warnings by @filmor in pythonnet/pythonnet#2725 * Implement support for DLR get/set by @filmor in pythonnet/pythonnet#2706 ## New Contributors * @Metadorius made their first contribution in pythonnet/pythonnet#2701 **Full Changelog**: pythonnet/pythonnet@v3.1.0-rc0...v3.1.0-rc1 ## 3.1.0-rc0 ## What's Changed * ci: properly exclude job by @RobPasMue in pythonnet/pythonnet#2542 * `__delitem__` for `IList<T>` and `IDictionary<K,V>` by @lostmsu in pythonnet/pythonnet#2533 * Fix docs workflow by @filmor in pythonnet/pythonnet#2584 * Drop EOLd Python versions by @filmor in pythonnet/pythonnet#2632 * Bump setuptools and adjust license information by @filmor in pythonnet/pythonnet#2633 * Minimal .NET 8 usage changes by @filmor in pythonnet/pythonnet#2634 * Drop performance tests by @filmor in pythonnet/pythonnet#2636 * Properly detect availability of BinaryFormatter by @filmor in pythonnet/pythonnet#2639 * Use last compiler toolset version that support .NET 8 by @filmor in pythonnet/pythonnet#2640 * Add dependabot file by @filmor in pythonnet/pythonnet#2642 * Use official ARM runners by @filmor in pythonnet/pythonnet#2641 * Use uv and derive as much as possible from the environment, if available by @filmor in pythonnet/pythonnet#2652 * Fixes for the uv CI by @filmor in pythonnet/pythonnet#2654 * Ensure that the tests work even if BinaryFormatter is not available by @filmor in pythonnet/pythonnet#2638 * Fix line endings by @filmor in pythonnet/pythonnet#2668 * Switch to .NET SDK 10 by @lostmsu in pythonnet/pythonnet#2684 * Python 3.14 by @filmor in pythonnet/pythonnet#2611 ## New Contributors * @RobPasMue made their first contribution in pythonnet/pythonnet#2542 * @dependabot[bot] made their first contribution in pythonnet/pythonnet#2644 **Full Changelog**: pythonnet/pythonnet@v3.0.5...v3.1.0-rc0 Commits viewable in [compare view](pythonnet/pythonnet@v3.0.5...v3.1.0). </details> [![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=pythonnet&package-manager=nuget&previous-version=3.0.5&new-version=3.1.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Signed-off-by: dependabot[bot] <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

den-run-ai mentioned this pull request Mar 23, 2025

IDisposable should implement the context manager protocol #79

Open

filmor force-pushed the feature/context-manager-disposable branch from 91c9670 to 4edf14c Compare May 5, 2026 16:23

den-run-ai and others added 4 commits May 7, 2026 19:55

Add context manager protocol for .NET IDisposable types

15de5fa

update docs

d6fda69

author fix

2256ff1

Use pytest for the disposable tests

7ed43bd

filmor force-pushed the feature/context-manager-disposable branch from 959f544 to 7ed43bd Compare May 7, 2026 17:55

filmor approved these changes May 7, 2026

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filmor merged commit 25e0ccf into pythonnet:master May 11, 2026
80 of 83 checks passed

This was referenced May 24, 2026

Bump pythonnet from 3.0.5 to 3.1.0 zcsizmadia/PyDotNet#12

Merged

chore: Bump pythonnet from 3.0.5 to 3.1.0 apache/arrow-dotnet#364

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Add context manager protocol for .NET IDisposable types#2568

Add context manager protocol for .NET IDisposable types#2568
filmor merged 4 commits into
pythonnet:masterfrom
den-run-ai:feature/context-manager-disposable

den-run-ai commented Mar 23, 2025

Uh oh!

lostmsu commented Mar 24, 2025 •

edited

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den-run-ai commented Mar 24, 2025

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lostmsu commented Apr 11, 2025

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michaelblyons commented May 1, 2025

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filmor commented May 7, 2026

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den-run-ai commented Mar 23, 2025

What does this implement/fix? Explain your changes.

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lostmsu commented Mar 24, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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den-run-ai commented Mar 24, 2025

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lostmsu commented Apr 11, 2025

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michaelblyons commented May 1, 2025

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filmor commented May 7, 2026

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lostmsu commented Mar 24, 2025 •

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