gh-81325: Support path-like objects with streaming TarFile (#137188)

aeurielesn · emmatyping · web-flow · commit 3ec3d053452a · 2025-08-03T19:53:01.000-07:00
Co-authored-by: Emma Smith &lt;emma@emmatyping.dev&gt;
diff --git a/Lib/tarfile.py b/Lib/tarfile.py
@@ -353,7 +353,7 @@ def __init__(self, name, mode, comptype, fileobj, bufsize,
             fileobj = _StreamProxy(fileobj)
             comptype = fileobj.getcomptype()
 
-        self.name     = name or ""
+        self.name     = os.fspath(name) if name is not None else ""
         self.mode     = mode
         self.comptype = comptype
         self.fileobj  = fileobj
diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py
@@ -1737,6 +1737,16 @@ def test_file_mode(self):
         finally:
             os.umask(original_umask)
 
+    def test_pathlike_name(self):
+        expected_name = os.path.abspath(tmpname)
+        tarpath = os_helper.FakePath(tmpname)
+
+        for func in (tarfile.open, tarfile.TarFile.open):
+            with self.subTest():
+                with func(tarpath, self.mode) as tar:
+                    self.assertEqual(tar.name, expected_name)
+                os_helper.unlink(tmpname)
+
 
 class GzipStreamWriteTest(GzipTest, StreamWriteTest):
     def test_source_directory_not_leaked(self):
diff --git a/Misc/NEWS.d/next/Library/2025-07-28-23-11-29.gh-issue-81325.jMJFBe.rst b/Misc/NEWS.d/next/Library/2025-07-28-23-11-29.gh-issue-81325.jMJFBe.rst
@@ -0,0 +1,2 @@
+:class:`tarfile.TarFile` now accepts a :term:`path-like <path-like object>` when working on a tar archive.
+(Contributed by Alexander Enrique Urieles Nieto in :gh:`81325`.)

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+:class:`tarfile.TarFile` now accepts a :term:`path-like <path-like object>` when working on a tar archive.
	`2`	+(Contributed by Alexander Enrique Urieles Nieto in :gh:`81325`.)