From b840e4ea1cec50c5e20908b1ff4a20651ed421f8 Mon Sep 17 00:00:00 2001
From: Yash <yashrajpala8@gmail.com>
Date: Thu, 8 Jan 2026 13:28:18 +0530
Subject: [PATCH 1/3] symtable commit

---
 Lib/symtable.py           | 13 +++++++++++++
 Lib/test/test_symtable.py | 16 ++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/Lib/symtable.py b/Lib/symtable.py
index 4c832e68f94cbd..0ca17ae1581726 100644
--- a/Lib/symtable.py
+++ b/Lib/symtable.py
@@ -184,6 +184,7 @@ class Function(SymbolTable):
     __frees = None
     __globals = None
     __nonlocals = None
+    __cells = None
 
     def __idents_matching(self, test_func):
         return tuple(ident for ident in self.get_identifiers()
@@ -229,6 +230,14 @@ def get_frees(self):
             self.__frees = self.__idents_matching(is_free)
         return self.__frees
 
+    def get_cells(self):
+        """Return a tuple of cells in the function."""
+        if self.__cells is None:
+            is_cell = lambda x: _get_scope(x) == CELL
+            self.__cells = self.__idents_matching(is_cell)
+        return self.__cells
+
+
 
 class Class(SymbolTable):
 
@@ -342,6 +351,10 @@ def is_free(self):
         """
         return bool(self.__scope == FREE)
 
+    def is_cell(self):
+        """Return *True* if the symbol is a cell variable."""
+        return bool(self.__scope == CELL)
+
     def is_free_class(self):
         """Return *True* if a class-scoped symbol is free from
         the perspective of a method."""
diff --git a/Lib/test/test_symtable.py b/Lib/test/test_symtable.py
index 094ab8f573e7ba..1a972f8d50e173 100644
--- a/Lib/test/test_symtable.py
+++ b/Lib/test/test_symtable.py
@@ -611,6 +611,22 @@ def test_filter_syntax_warnings_by_module(self):
             self.assertEqual(wm.filename, filename)
             self.assertIs(wm.category, SyntaxWarning)
 
+    def test_cells(self):
+        #test for addition of is_cell() and get_cells()
+        #see https://github.com/python/cpython/issues/143504
+        code="""def outer():
+                    x=1
+                    def inner():
+                        return x"""
+
+        top=symtable.symtable(code,"?","exec")
+        outer=top.get_children()[0]
+
+        self.assertIn("x",outer.get_cells())
+
+        self.assertTrue(outer.lookup("x").is_cell())
+        self.assertFalse(outer.lookup("inner").is_cell())
+
 
 class ComprehensionTests(unittest.TestCase):
     def get_identifiers_recursive(self, st, res):

From 0b676e42d9c3306a0986a03cfb48def6b364777a Mon Sep 17 00:00:00 2001
From: Yashraj <yashrajpala8@gmail.com>
Date: Thu, 8 Jan 2026 16:17:19 +0530
Subject: [PATCH 2/3] symtable fix 1

Co-authored-by: AN Long <aisk@users.noreply.github.com>
---
 Lib/symtable.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Lib/symtable.py b/Lib/symtable.py
index 0ca17ae1581726..b22149f4f7794e 100644
--- a/Lib/symtable.py
+++ b/Lib/symtable.py
@@ -238,7 +238,6 @@ def get_cells(self):
         return self.__cells
 
 
-
 class Class(SymbolTable):
 
     __methods = None

From 2175829e698f01a7f555dcb3ee09a30879de09c0 Mon Sep 17 00:00:00 2001
From: Yash <yashrajpala8@gmail.com>
Date: Thu, 8 Jan 2026 16:28:33 +0530
Subject: [PATCH 3/3] symtable fix 2- news

---
 .../2026-01-08-16-28-03.gh-issue-143504.PlC_Yv.rst               | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 Misc/NEWS.d/next/Core_and_Builtins/2026-01-08-16-28-03.gh-issue-143504.PlC_Yv.rst

diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-01-08-16-28-03.gh-issue-143504.PlC_Yv.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-01-08-16-28-03.gh-issue-143504.PlC_Yv.rst
new file mode 100644
index 00000000000000..a4692f9c36777a
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2026-01-08-16-28-03.gh-issue-143504.PlC_Yv.rst
@@ -0,0 +1 @@
+Add symtable.is_cell() and get_cells() methods for cell variable analysis.