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Don't uninstall packages that should be kept #7389

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merged 1 commit into from
Jan 22, 2023

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Resolves: #4465

When deciding what to uninstall at --sync, poetry was checking whether the installed packages appeared in the _current_packages, which is to say: it was checking whether the installed packages were wanted by the previous lock file (if any).

#4465 shows the most extreme way in which this is wrong: if you delete the old lock file then poetry concludes that nothing that is installed can be wanted, and removes everything.

The correct check is to ask whether the installed packages are wanted by the result of the locking that has just been done.

@neersighted neersighted added area/installer Related to the dependency installer area/deps Related to representing and locking dependencies labels Jan 22, 2023
@neersighted neersighted added this to the 1.4 milestone Jan 22, 2023
@neersighted neersighted added the kind/bug Something isn't working as expected label Jan 22, 2023
@neersighted neersighted merged commit 10957d5 into python-poetry:master Jan 22, 2023
@dimbleby dimbleby deleted the keep-wanted-packages branch January 22, 2023 18:35
mwalbeck pushed a commit to mwalbeck/docker-python-poetry that referenced this pull request Feb 28, 2023
This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [poetry](https://python-poetry.org/) ([source](https://github.com/python-poetry/poetry), [changelog](https://python-poetry.org/history/)) | minor | `1.3.2` -> `1.4.0` |

---

### Release Notes

<details>
<summary>python-poetry/poetry</summary>

### [`v1.4.0`](https://github.com/python-poetry/poetry/blob/HEAD/CHANGELOG.md#&#8203;140---2023-02-27)

[Compare Source](python-poetry/poetry@1.3.2...1.4.0)

##### Added

-   **Add a modern installer (`installer.modern-installation`) for faster installation of packages and independence from pip** ([#&#8203;6205](python-poetry/poetry#6205)).
-   Add support for `Private ::` trove classifiers ([#&#8203;7271](python-poetry/poetry#7271)).
-   Add the version of poetry in the `@generated` comment at the beginning of the lock file ([#&#8203;7339](python-poetry/poetry#7339)).
-   Add support for `virtualenvs.prefer-active-python` when running `poetry new` and `poetry init` ([#&#8203;7100](python-poetry/poetry#7100)).

##### Changed

-   **Deprecate the old installer, i.e. setting `experimental.new-installer` to `false`** ([#&#8203;7358](python-poetry/poetry#7358)).
-   Remove unused `platform` field from cached package info and bump the cache version ([#&#8203;7304](python-poetry/poetry#7304)).
-   Extra dependencies of the root project are now sorted in the lock file ([#&#8203;7375](python-poetry/poetry#7375)).
-   Remove upper boundary for `importlib-metadata` dependency ([#&#8203;7434](python-poetry/poetry#7434)).
-   Validate path dependencies during use instead of during construction ([#&#8203;6844](python-poetry/poetry#6844)).
-   Remove the deprecated `repository` modules ([#&#8203;7468](python-poetry/poetry#7468)).

##### Fixed

-   Fix an issue where an unconditional dependency of an extra was not installed in specific environments ([#&#8203;7175](python-poetry/poetry#7175)).
-   Fix an issue where a pre-release of a dependency was chosen even if a stable release fulfilled the constraint ([#&#8203;7225](python-poetry/poetry#7225), [#&#8203;7236](python-poetry/poetry#7236)).
-   Fix an issue where HTTP redirects were not handled correctly during publishing ([#&#8203;7160](python-poetry/poetry#7160)).
-   Fix an issue where `poetry check` did not handle the `-C, --directory` option correctly ([#&#8203;7241](python-poetry/poetry#7241)).
-   Fix an issue where the subdirectory information of a git dependency was not written to the lock file ([#&#8203;7367](python-poetry/poetry#7367)).
-   Fix an issue where the wrong Python version was selected when creating an virtual environment ([#&#8203;7221](python-poetry/poetry#7221)).
-   Fix an issue where packages that should be kept were uninstalled when calling `poetry install --sync` ([#&#8203;7389](python-poetry/poetry#7389)).
-   Fix an issue where an incorrect value was set for `sys.argv[0]` when running installed scripts ([#&#8203;6737](python-poetry/poetry#6737)).
-   Fix an issue where hashes in `direct_url.json` files were not written according to the specification ([#&#8203;7475](python-poetry/poetry#7475)).
-   Fix an issue where poetry commands failed due to special characters in the path of the project or virtual environment ([#&#8203;7471](python-poetry/poetry#7471)).
-   Fix an issue where poetry crashed with a `JSONDecodeError` when running a Python script that produced certain warnings ([#&#8203;6665](python-poetry/poetry#6665)).

##### Docs

-   Add advice on how to maintain a poetry plugin ([#&#8203;6977](python-poetry/poetry#6977)).
-   Update tox examples to comply with the latest tox release ([#&#8203;7341](python-poetry/poetry#7341)).
-   Mention that the `poetry export` can export `constraints.txt` files ([#&#8203;7383](python-poetry/poetry#7383)).
-   Add clarifications for moving configuration files ([#&#8203;6864](python-poetry/poetry#6864)).
-   Mention the different types of exact version specifications ([#&#8203;7503](python-poetry/poetry#7503)).

##### poetry-core ([`1.5.1`](https://github.com/python-poetry/poetry-core/releases/tag/1.5.1))

-   Improve marker handling ([#&#8203;528](python-poetry/poetry-core#528),
    [#&#8203;534](python-poetry/poetry-core#534),
    [#&#8203;530](python-poetry/poetry-core#530),
    [#&#8203;546](python-poetry/poetry-core#546),
    [#&#8203;547](python-poetry/poetry-core#547)).
-   Validate whether dependencies referenced in `extras` are defined in the main dependency group ([#&#8203;542](python-poetry/poetry-core#542)).
-   Poetry no longer generates a `setup.py` file in sdists by default ([#&#8203;318](python-poetry/poetry-core#318)).
-   Fix an issue where trailing newlines were allowed in `tool.poetry.description` ([#&#8203;505](python-poetry/poetry-core#505)).
-   Fix an issue where the name of the data folder in wheels was not normalized ([#&#8203;532](python-poetry/poetry-core#532)).
-   Fix an issue where the order of entries in the RECORD file was not deterministic ([#&#8203;545](python-poetry/poetry-core#545)).
-   Fix an issue where zero padding was not correctly handled in version comparisons ([#&#8203;540](python-poetry/poetry-core#540)).
-   Fix an issue where sdist builds did not support multiple READMEs ([#&#8203;486](python-poetry/poetry-core#486)).

##### poetry-plugin-export ([`^1.3.0`](https://github.com/python-poetry/poetry-plugin-export/releases/tag/1.3.0))

-   Fix an issue where the export failed if there was a circular dependency on the root package ([#&#8203;118](python-poetry/poetry-plugin-export#118)).

</details>

---

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---

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---

This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNC4xNTIuNSIsInVwZGF0ZWRJblZlciI6IjM0LjE1Mi41In0=-->

Reviewed-on: https://git.walbeck.it/walbeck-it/docker-python-poetry/pulls/655
Co-authored-by: renovate-bot <[email protected]>
Co-committed-by: renovate-bot <[email protected]>
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Deleting lock file, in combination with --remove-untracked, causes packages to be removed during install
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