gh-140691: urllib.request: Close FTP control socket if data socket can't connect (GH-140835)

Co-authored-by: codenamenam <bluetire27@gmail.com>

Lib/_py_warnings.py

@@ -646,6 +646,9 @@ def __str__(self):
                     "line : %r}" % (self.message, self._category_name,
                                     self.filename, self.lineno, self.line))
 
+    def __repr__(self):
+        return f'<{type(self).__qualname__} {self}>'
+
 
 class catch_warnings(object):