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Assignment of type annotated variables inside @typechecked functions become None at runtime when using suppress_type_checks #380

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dodamih opened this issue Aug 15, 2023 · 1 comment
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@dodamih
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dodamih commented Aug 15, 2023

Things to check first

  • I have searched the existing issues and didn't find my bug already reported there

  • I have checked that my bug is still present in the latest release

Typeguard version

4.1.0

Python version

3.9 / 3.10 / 3.11

What happened?

When calling a @typechecked function within a suppress_type_checks context, any assignment of type annotated variables end up assigning None to the variable.

How can we reproduce the bug?

Run (from a file):

from typeguard import typechecked, suppress_type_checks

@typechecked
def foo():
    bar: int = 3
    print(bar)
    baz = 3
    print(baz)

with suppress_type_checks():
    foo()

Output:

None
3
@agronholm
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Oops! Thankfully this will be easy to fix.

zanieb pushed a commit to astral-sh/ruff-lsp that referenced this issue Aug 18, 2023
Bumps [typeguard](https://github.com/agronholm/typeguard) from 4.1.1 to
4.1.2.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/agronholm/typeguard/blob/master/docs/versionhistory.rst">typeguard's
changelog</a>.</em></p>
<blockquote>
<h1>Version history</h1>
<p>This library adheres to <code>Semantic Versioning 2.0
&lt;https://semver.org/#semantic-versioning-200&gt;</code>_.</p>
<p><strong>UNRELEASED</strong></p>
<ul>
<li>Dropped Python 3.7 support</li>
</ul>
<p><strong>4.1.2</strong> (2023-08-18)</p>
<ul>
<li>Fixed <code>Any</code> being removed from a subscript that still
contains other elements
(<code>[#373](agronholm/typeguard#373)
&lt;https://github.com/agronholm/typeguard/issues/373&gt;</code>_</li>
</ul>
<p><strong>4.1.1</strong> (2023-08-16)</p>
<ul>
<li>Fixed <code>suppress_type_checks()</code> causing annotated variable
assignments to always
assign <code>None</code>
(<code>[#380](agronholm/typeguard#380)
&lt;https://github.com/agronholm/typeguard/issues/380&gt;</code>_)</li>
</ul>
<p><strong>4.1.0</strong> (2023-07-30)</p>
<ul>
<li>Added support for passing a tuple as <code>expected_type</code> to
<code>check_type()</code>, making it
more of a drop-in replacement for <code>isinstance()</code>
(<code>[#371](agronholm/typeguard#371)
&lt;https://github.com/agronholm/typeguard/issues/371&gt;</code>_</li>
<li>Fixed regression where <code>Literal</code> inside a
<code>Union</code> had quotes stripped from its
contents, thus typically causing <code>NameError</code> to be raised
when run
(<code>[#372](agronholm/typeguard#372)
&lt;https://github.com/agronholm/typeguard/issues/372&gt;</code>_)</li>
</ul>
<p><strong>4.0.1</strong> (2023-07-27)</p>
<ul>
<li>Fixed handling of <code>typing_extensions.Literal</code> on Python
3.8 and 3.9 when
<code>typing_extensions&gt;=4.6.0</code> is installed
(<code>[#363](agronholm/typeguard#363)
&lt;https://github.com/agronholm/typeguard/issues/363&gt;</code>_; PR by
Alex Waygood)</li>
<li>Fixed <code>NameError</code> when generated type checking code
references an imported name from
a method
(<code>[#362](agronholm/typeguard#362)
&lt;https://github.com/agronholm/typeguard/issues/362&gt;</code>_)</li>
<li>Fixed docstrings disappearing from instrumented functions
(<code>[#359](agronholm/typeguard#359)
&lt;https://github.com/agronholm/typeguard/issues/359&gt;</code>_)</li>
<li>Fixed <code>@TypeChecked</code> failing to instrument functions when
there are more than one
function within the same scope
(<code>[#355](agronholm/typeguard#355)
&lt;https://github.com/agronholm/typeguard/issues/355&gt;</code>_)</li>
<li>Fixed <code>frozenset</code> not being checked
(<code>[#367](agronholm/typeguard#367)
&lt;https://github.com/agronholm/typeguard/issues/367&gt;</code>_)</li>
</ul>
<p><strong>4.0.0</strong> (2023-05-12)</p>
<ul>
<li>No changes</li>
</ul>
<p><strong>4.0.0rc6</strong> (2023-05-07)</p>
<ul>
<li>Fixed <code>@TypeChecked</code> optimization causing compilation of
instrumented code to fail</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/agronholm/typeguard/commit/d7a705e329529456898265d94adbdafed0c4c22c"><code>d7a705e</code></a>
Added release date</li>
<li><a
href="https://github.com/agronholm/typeguard/commit/d07fbb4fd49e716c4db12a6fca3dcfa8a58fd6d2"><code>d07fbb4</code></a>
Fixed Any being removed from a subscript that still contains other
elements</li>
<li>See full diff in <a
href="https://github.com/agronholm/typeguard/compare/4.1.1...4.1.2">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=typeguard&package-manager=pip&previous-version=4.1.1&new-version=4.1.2)](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
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[//]: # (dependabot-automerge-end)

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
azurelotus0926 added a commit to azurelotus0926/ruff-lsp that referenced this issue Jun 27, 2024
Bumps [typeguard](https://github.com/agronholm/typeguard) from 4.1.1 to
4.1.2.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/agronholm/typeguard/blob/master/docs/versionhistory.rst">typeguard's
changelog</a>.</em></p>
<blockquote>
<h1>Version history</h1>
<p>This library adheres to <code>Semantic Versioning 2.0
&lt;https://semver.org/#semantic-versioning-200&gt;</code>_.</p>
<p><strong>UNRELEASED</strong></p>
<ul>
<li>Dropped Python 3.7 support</li>
</ul>
<p><strong>4.1.2</strong> (2023-08-18)</p>
<ul>
<li>Fixed <code>Any</code> being removed from a subscript that still
contains other elements
(<code>[#373](agronholm/typeguard#373)
&lt;https://github.com/agronholm/typeguard/issues/373&gt;</code>_</li>
</ul>
<p><strong>4.1.1</strong> (2023-08-16)</p>
<ul>
<li>Fixed <code>suppress_type_checks()</code> causing annotated variable
assignments to always
assign <code>None</code>
(<code>[#380](agronholm/typeguard#380)
&lt;https://github.com/agronholm/typeguard/issues/380&gt;</code>_)</li>
</ul>
<p><strong>4.1.0</strong> (2023-07-30)</p>
<ul>
<li>Added support for passing a tuple as <code>expected_type</code> to
<code>check_type()</code>, making it
more of a drop-in replacement for <code>isinstance()</code>
(<code>[#371](agronholm/typeguard#371)
&lt;https://github.com/agronholm/typeguard/issues/371&gt;</code>_</li>
<li>Fixed regression where <code>Literal</code> inside a
<code>Union</code> had quotes stripped from its
contents, thus typically causing <code>NameError</code> to be raised
when run
(<code>[#372](agronholm/typeguard#372)
&lt;https://github.com/agronholm/typeguard/issues/372&gt;</code>_)</li>
</ul>
<p><strong>4.0.1</strong> (2023-07-27)</p>
<ul>
<li>Fixed handling of <code>typing_extensions.Literal</code> on Python
3.8 and 3.9 when
<code>typing_extensions&gt;=4.6.0</code> is installed
(<code>[#363](agronholm/typeguard#363)
&lt;https://github.com/agronholm/typeguard/issues/363&gt;</code>_; PR by
Alex Waygood)</li>
<li>Fixed <code>NameError</code> when generated type checking code
references an imported name from
a method
(<code>[#362](agronholm/typeguard#362)
&lt;https://github.com/agronholm/typeguard/issues/362&gt;</code>_)</li>
<li>Fixed docstrings disappearing from instrumented functions
(<code>[#359](agronholm/typeguard#359)
&lt;https://github.com/agronholm/typeguard/issues/359&gt;</code>_)</li>
<li>Fixed <code>@TypeChecked</code> failing to instrument functions when
there are more than one
function within the same scope
(<code>[#355](agronholm/typeguard#355)
&lt;https://github.com/agronholm/typeguard/issues/355&gt;</code>_)</li>
<li>Fixed <code>frozenset</code> not being checked
(<code>[#367](agronholm/typeguard#367)
&lt;https://github.com/agronholm/typeguard/issues/367&gt;</code>_)</li>
</ul>
<p><strong>4.0.0</strong> (2023-05-12)</p>
<ul>
<li>No changes</li>
</ul>
<p><strong>4.0.0rc6</strong> (2023-05-07)</p>
<ul>
<li>Fixed <code>@TypeChecked</code> optimization causing compilation of
instrumented code to fail</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/agronholm/typeguard/commit/d7a705e329529456898265d94adbdafed0c4c22c"><code>d7a705e</code></a>
Added release date</li>
<li><a
href="https://github.com/agronholm/typeguard/commit/d07fbb4fd49e716c4db12a6fca3dcfa8a58fd6d2"><code>d07fbb4</code></a>
Fixed Any being removed from a subscript that still contains other
elements</li>
<li>See full diff in <a
href="https://github.com/agronholm/typeguard/compare/4.1.1...4.1.2">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=typeguard&package-manager=pip&previous-version=4.1.1&new-version=4.1.2)](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 merge` will merge this PR after your CI passes on it
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Signed-off-by: dependabot[bot] <support@github.com>
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