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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="description" content="Type system conformance test results for Python.">
<meta name="viewport" content="initial-scale=1.0, width=device-width">
<base target="_blank">
<title>Python Type System Conformance Test Results</title>
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</head>
<body>
<header>
<h1>Python Type System Conformance Test Results</h1>
<p class="disclaimer">
While specification conformance is important for the ecosystem, we don't recommend
using it as the primary basis for choosing a type checker. It is not representative
of many of the things users typically care about.
</p>
<form>
<label for="color-scheme">Theme:</label>
<select id="color-scheme">
<option value="auto">🌗 Auto</option>
<option value="dark">🌑 Dark</option>
<option value="light">🌕 Light</option>
</select>
</form>
</header>
<main>
<table>
<colgroup>
<col class="col1" span="1">
<col class="col2" span="6">
</colgroup>
<thead>
<tr>
<th scope="col"></th>
<th scope="col">mypy 2.1.0</th>
<th scope="col">pycroscope 0.4.0</th>
<th scope="col">pyrefly 1.1.0</th>
<th scope="col">pyright 1.1.410</th>
<th scope="col">ty 0.0.50</th>
<th scope="col">zuban 0.8.2</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="7" scope="colgroup">
<a href="https://typing.readthedocs.io/en/latest/spec/annotations.html">Type annotations</a>
</th>
</tr>
<tr>
<th scope="row">annotations_coroutines</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">annotations_forward_refs</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not report error for a forward reference that is not enclosed in quotes.</li>
<li>Does not report error for use of quoted type with <code>|</code> operator (runtime error).</li>
<li>Incorrectly generates error for quoted type defined in class scope.</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Fails to reject <code>"x" | int</code> annotations that fail at runtime.</li>
<li>Rejects some valid quoted annotations.</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Types in quotes incorrectly refer to shadowing class member.</li>
<li>Does not reject some type forms that require quotes.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Resolves references in type annotations as referring to end-of-scope types (<a href="https://discuss.python.org/t/annotation-string-references-in-class-scope-in-conformance-tests/105439">https://discuss.python.org/t/annotation-string-references-in-class-scope-in-conformance-tests/105439</a>, <a href="https://github.com/python/typing/pull/2144">https://github.com/python/typing/pull/2144</a>)</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Incorrectly generates error for quoted type defined in class scope.</li>
</ul>
</td>
</tr>
<tr>
<th scope="row">annotations_generators</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not report incompatible <code>Generator</code> type in <code>yield from</code> statement.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">annotations_methods</th>
<td class="conformant tooltip">
Pass
<ul class="notes">
<li>Type evaluation differs from other type checkers because of ambiguity in the spec related to method bindings.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant tooltip">
Pass
<ul class="notes">
<li>Type evaluation differs from other type checkers because of ambiguity in the spec related to method bindings.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">annotations_typeexpr</th>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Fails to reject various weird annotations</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr class="summary">
<td></td>
<td>4 / 5 • 80.0%</td>
<td>4 / 5 • 80.0%</td>
<td>4.5 / 5 • 90.0%</td>
<td>5 / 5 • 100.0%</td>
<td>4.5 / 5 • 90.0%</td>
<td>4.5 / 5 • 90.0%</td>
</tr>
</tbody>
<tbody>
<tr>
<th colspan="7" scope="colgroup">
<a href="https://typing.readthedocs.io/en/latest/spec/type-forms.html">Type forms</a>
</th>
</tr>
<tr>
<th scope="row">typeforms_typeform</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not support assigning <code>Union</code> and <code>GenericAlias</code> objects to their runtime types.</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Fails to reject various weird annotations</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="not-conformant">Unsupported</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr class="summary">
<td></td>
<td>0.5 / 1 • 50.0%</td>
<td>0.5 / 1 • 50.0%</td>
<td>1 / 1 • 100.0%</td>
<td>0 / 1 • 0.0%</td>
<td>1 / 1 • 100.0%</td>
<td>1 / 1 • 100.0%</td>
</tr>
</tbody>
<tbody>
<tr>
<th colspan="7" scope="colgroup">
<a href="https://typing.readthedocs.io/en/latest/spec/special-types.html">Special types in annotations</a>
</th>
</tr>
<tr>
<th scope="row">specialtypes_any</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">specialtypes_never</th>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not enforce invariance in some contexts</li>
<li>Does not allow <code>Any</code> to be assigned to <code>Never</code></li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">specialtypes_none</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">specialtypes_promotions</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">specialtypes_type</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not treat <code>type</code> same as <code>type[Any]</code> for <code>assert_type</code>.</li>
<li>Does not allow access to unknown attributes from object of type <code>type[Any]</code>.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Allows arbitrary attributes to be accessed on <code>TA</code> where <code>TA = typing.Type[typing.Any]</code> or <code>TA = type[typing.Any]</code>.</li>
<li>Treats <code>type</code> equivalently to <code>type[object]</code> rather than <code>type[typing.Any]</code>.</li>
</ul>
</td>
<td class="conformant">Pass</td>
</tr>
<tr class="summary">
<td></td>
<td>4.5 / 5 • 90.0%</td>
<td>4.5 / 5 • 90.0%</td>
<td>5 / 5 • 100.0%</td>
<td>5 / 5 • 100.0%</td>
<td>4.5 / 5 • 90.0%</td>
<td>5 / 5 • 100.0%</td>
</tr>
</tbody>
<tbody>
<tr>
<th colspan="7" scope="colgroup">
<a href="https://typing.readthedocs.io/en/latest/spec/generics.html">Generics</a>
</th>
</tr>
<tr>
<th scope="row">generics_base_class</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not detect inconsistent type variable ordering.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_basic</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Incorrectly allows constrained type variables to be solved to a union of their constraints.</li>
</ul>
</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_defaults</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not detect a <code>TypeVar</code> with a default used after a <code>TypeVarTuple</code>.</li>
<li>Does not fully support defaults on <code>TypeVarTuple</code> and <code>ParamSpec</code>.</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Numerous issues; does not support <code>TypeVarTuple</code> and <code>ParamSpec</code> defaults.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not forbid a <code>TypeVar</code> immediately following a <code>TypeVarTuple</code> in a parameter list from having a default.</li>
<li>Does not support <code>TypeVarTuple</code>.</li>
</ul>
</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_defaults_referential</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not correctly handle defaults referencing other <code>TypeVar</code>s.</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Fails to apply default specializations in some cases.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_defaults_specialization</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not correctly resolve defaults when classes are used directly.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Allows incorrect assignment to <code>type[]</code>.</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not reject subscription of an already-specialized generic class.</li>
</ul>
</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_paramspec_basic</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_paramspec_components</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Incorrectly allows using <code>*args: P.args</code> and <code>**kwargs: P.kwargs</code> when <code>P</code> has not been put into scope by any other parameter annotation or enclosing scope.</li>
</ul>
</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_paramspec_semantics</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant tooltip">
Pass
<ul class="notes">
<li>Constraint solver doesn't find common type for two signatures captured by a single <code>ParamSpec</code> (allowed).</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_paramspec_specialization</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_scoping</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not implement several scoping checks/restrictions for generics.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not reject <code>list[T]()</code> in the global scope, where <code>T</code> is an unbound type variable.</li>
<li>Does not reject <code>alias: TypeAlias = list[T]</code> in the body scope of a class generic over a type variable <code>T</code>.</li>
</ul>
</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_self_advanced</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not infer the type of an unannotated <code>self</code> parameter to be type <code>Self</code>.</li>
<li>Does not retain <code>Self</code> when calling method that returns <code>Self</code>.</li>
<li>Does not infer the type of an unannotated <code>cls</code> parameter to be type <code>type[Self]</code>.</li>
<li>Does not retain <code>Self</code> when accessing attribute through <code>type[Self]</code>.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant tooltip">
Pass
<ul class="notes">
<li>Treats attributes not initialized on the class as instance-only.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_self_attributes</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_self_basic</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_self_protocols</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_self_usage</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not reject <code>Self</code> used in a return annotation when <code>self</code> is annotated using another type variable.</li>
</ul>
</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_syntax_compatibility</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_syntax_declarations</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_syntax_infer_variance</th>
<td class="not-conformant tooltip">
Unsupported
<ul class="notes">
<li>Type parameter syntax not yet supported.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_syntax_scoping</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not following runtime scoping rules for type parameters in all cases.</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Misses some details of scoping rules.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_type_erasure</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Infers <code>Node[Never]</code> instead of <code>Node[Any]</code> when argument is not provided.</li>
<li>False negative on instance attribute access on <code>type(node)</code>.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not reject access of generic instance variable from the class object.</li>
</ul>
</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_typevartuple_args</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not enforce that tuples captured by <code>TypeVarTuple</code> are of the same length.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not correctly solve <code>TypeVarTuple</code> with heterogeneous bounds.</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Supports PEP-646 unpacked tuples but not <code>TypeVarTuple</code>.</li>
</ul>
</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_typevartuple_basic</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not enforce that tuples captured by <code>TypeVarTuple</code> are same length.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not correctly solve <code>TypeVarTuple</code> with heterogeneous bounds.</li>
</ul>
</td>
<td class="not-conformant">Unsupported</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_typevartuple_callable</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="not-conformant">Unsupported</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_typevartuple_concat</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="not-conformant">Unsupported</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_typevartuple_overloads</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_typevartuple_specialization</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Incorrectly specializes generic alias that includes a <code>TypeVar</code> and <code>TypeVarTuple</code> if no type arguments are provided.</li>
<li>Rejects specialization of generic type alias defined as a tuple containing a <code>TypeVar</code>.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="not-conformant">Unsupported</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_typevartuple_unpack</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="not-conformant">Unsupported</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_upper_bound</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not reject use of type variable within an upper bound.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_variance</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not reject use of class-scoped <code>TypeVar</code> used in a base class when variance is incompatible.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">generics_variance_inference</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr class="summary">
<td></td>
<td>23 / 30 • 76.7%</td>
<td>28.5 / 30 • 95.0%</td>
<td>29.5 / 30 • 98.3%</td>
<td>28.5 / 30 • 95.0%</td>
<td>21 / 30 • 70.0%</td>
<td>30 / 30 • 100.0%</td>
</tr>
</tbody>
<tbody>
<tr>
<th colspan="7" scope="colgroup">
<a href="https://typing.readthedocs.io/en/latest/spec/qualifiers.html">Type qualifiers</a>
</th>
</tr>
<tr>
<th scope="row">qualifiers_annotated</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not allow <code>ClassVar</code> to be nested within <code>Annotated</code>.</li>
<li>Does not allow <code>Final</code> to be nested within <code>Annotated</code>.</li>
<li>Does not allow <code>Required</code> and <code>NotRequired</code> to be nested within <code>Annotated</code>.</li>
<li>Does not reject <code>type[T]</code> compatibility for type alias defined with <code>Annotated</code>.</li>
<li>Does not reject call of type alias defined with <code>Annotated</code>.</li>
</ul>
</td>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Fails to reject various weird annotations.</li>
<li>False positive on lambda in <code>Annotated</code>.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">qualifiers_final_annotation</th>
<td class="partially-conformant tooltip">
Partial
<ul class="notes">
<li>Does not treat use of <code>Final</code> name as if it was replaced by the literal in <code>NamedTuple</code> definition.</li>
<li>Does not allow conditional assignment of <code>Final</code> instance variable in <code>__init__</code> method.</li>
<li>Does not allow redefinition of private class variable that is marked <code>Final</code> in parent class.</li>
<li>Does not report modification of local <code>Final</code> variable via <code>for</code> statement.</li>
</ul>
</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr>
<th scope="row">qualifiers_final_decorator</th>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
<td class="conformant">Pass</td>
</tr>
<tr class="summary">
<td></td>
<td>2 / 3 • 66.7%</td>