Issue #10819: SocketIO.name property returns -1 when its closed, instead of

raising a ValueError, to fix repr().

Lib/socket.py

@@ -307,7 +307,10 @@ class SocketIO(io.RawIOBase):
 
     @property
     def name(self):
-        return self.fileno()
+        if not self.closed:
+            return self.fileno()
+        else:
+            return -1
 
     @property
     def mode(self):

Lib/test/test_socket.py

@@ -738,6 +738,12 @@ class GeneralModuleTests(unittest.TestCase):
             f = None
             support.gc_collect()
 
+    def test_name_closed_socketio(self):
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
+            fp = sock.makefile("rb")
+            fp.close()
+            self.assertEqual(repr(fp), "<_io.BufferedReader name=-1>")
+
 
 @unittest.skipUnless(thread, 'Threading required for this test.')
 class BasicTCPTest(SocketConnectedTest):

Misc/NEWS

@@ -30,6 +30,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #10819: SocketIO.name property returns -1 when its closed, instead of
+  raising a ValueError, to fix repr().
+
 - Issue #8650: zlib.compress() and zlib.decompress() raise an OverflowError if
   the input buffer length doesn't fit into an unsigned int (length bigger than
   2^32-1 bytes).