Detect typing module attributes with 'import typing as <name>

Signed-off-by: weiyaping <weiyaping@xfusion.com>

0001-Detect-typing-module-attributes-with-import-typing-a.patch

@@ -0,0 +1,75 @@
+From 13cad915e6b181b2f6a85efc2ead4856b23bccc0 Mon Sep 17 00:00:00 2001
+From: Angus L'Herrou <piraka@brandeis.edu>
+Date: Tue, 5 Oct 2021 18:44:29 -0400
+Subject: [PATCH] Detect typing module attributes with 'import typing as
+ <name>' (#632)
+
+* added functionality to detect typing module attributes with 'import typing as <name>'
+
+* remove async keyword from test_aliased_import
+---
+ pyflakes/checker.py                    | 12 +++++++++++-
+ pyflakes/test/test_type_annotations.py | 17 +++++++++++++++++
+ 2 files changed, 28 insertions(+), 1 deletion(-)
+
+diff --git a/pyflakes/checker.py b/pyflakes/checker.py
+index 6fafe89..45c7a4a 100644
+--- a/pyflakes/checker.py
++++ b/pyflakes/checker.py
+@@ -720,6 +720,16 @@ def _is_typing_helper(node, is_name_match_fn, scope_stack):
+ 
+         return False
+ 
++    def _module_scope_is_typing(name):
++        for scope in reversed(scope_stack):
++            if name in scope:
++                return (
++                    isinstance(scope[name], Importation) and
++                    scope[name].fullName in TYPING_MODULES
++                )
++
++        return False
++
+     return (
+         (
+             isinstance(node, ast.Name) and
+@@ -727,7 +737,7 @@ def _is_typing_helper(node, is_name_match_fn, scope_stack):
+         ) or (
+             isinstance(node, ast.Attribute) and
+             isinstance(node.value, ast.Name) and
+-            node.value.id in TYPING_MODULES and
++            _module_scope_is_typing(node.value.id) and
+             is_name_match_fn(node.attr)
+         )
+     )
+diff --git a/pyflakes/test/test_type_annotations.py b/pyflakes/test/test_type_annotations.py
+index 6a66bcd..f3b6c24 100644
+--- a/pyflakes/test/test_type_annotations.py
++++ b/pyflakes/test/test_type_annotations.py
+@@ -121,6 +121,23 @@ class TestTypeAnnotations(TestCase):
+             def f(self, x): return x
+         """)
+ 
++    def test_aliased_import(self):
++        """Detect when typing is imported as another name"""
++        self.flakes("""
++        import typing as t
++
++        @t.overload
++        def f(s):  # type: (None) -> None
++            pass
++
++        @t.overload
++        def f(s):  # type: (int) -> int
++            pass
++
++        def f(s):
++            return s
++        """)
++
+     def test_not_a_typing_overload(self):
+         """regression test for @typing.overload detection bug in 2.1.0"""
+         self.flakes("""
+-- 
+2.42.0.windows.2
+

pyflakes.spec

@@ -1,6 +1,6 @@
 Name:           pyflakes
 Version:        2.3.1
-Release:        3
+Release:        4
 Summary:        A simple program which checks Python source files for errors
 License:        MIT
 URL:            https://github.com/PyCQA/pyflakes
@@ -10,6 +10,7 @@ BuildRequires:  python2-devel >= 2.7 python2-setuptools
 
 Patch0001:      0001-remove-old-and-unused-tracing-code-625.patch
 Patch0002:      0001-add-support-for-match-statement-630.patch
+Patch0003:      0001-Detect-typing-module-attributes-with-import-typing-a.patch
 
 %description
 This is a safe program which analyze programs and detects various errors.\
@@ -93,6 +94,9 @@ ln -s pyflakes-3.1 %{buildroot}%{_mandir}/man1/pyflakes.1
 
 
 %changelog
+* Mon Dec 18 2023 liubo <liubo1@xfusion.com> - 2.3.1-4
+- Detect typing module attributes with 'import typing as <name>
+
 * Thu Nov 23 2023 liubo <liubo1@xfusion.com> - 2.3.1-3
 - add support for match statement