logging: handle StreamHandler representaton of stream with int name

When debugging uwsgi logging issues with python3.7 i got this:
Traceback (most recent call last):
  File "/usr/lib/python3.7/logging/__init__.py", line 269, in _after_at_fork_weak_calls
    _at_fork_weak_calls('release')
  File "/usr/lib/python3.7/logging/__init__.py", line 261, in _at_fork_weak_calls
    method_name, "method:", err, file=sys.stderr)
  File "/usr/lib/python3.7/logging/__init__.py", line 1066, in __repr__
    name = name + ' '
TypeError: unsupported operand type(s) for +: 'int' and 'str'

Author: xrmx

Lib/logging/__init__.py

@@ -1120,6 +1120,8 @@ def setStream(self, stream):
     def __repr__(self):
         level = getLevelName(self.level)
         name = getattr(self.stream, 'name', '')
+        #  bpo-36015: name can be an int
+        name = str(name)
         if name:
             name += ' '
         return '<%s %s(%s)>' % (self.__class__.__name__, name, level)

Lib/test/test_logging.py

@@ -743,6 +743,10 @@ class TestStreamHandler(logging.StreamHandler):
     def handleError(self, record):
         self.error_record = record
 
+class StreamWithIntName(object):
+    level = logging.NOTSET
+    name = 2
+
 class StreamHandlerTest(BaseTest):
     def test_error_handling(self):
         h = TestStreamHandler(BadStream())
@@ -780,6 +784,10 @@ def test_stream_setting(self):
         actual = h.setStream(old)
         self.assertIsNone(actual)
 
+    def test_can_represent_stream_with_int_name(self):
+        h = logging.StreamHandler(StreamWithIntName())
+        self.assertEqual(repr(h), '<StreamHandler 2 (NOTSET)>')
+
 # -- The following section could be moved into a server_helper.py module
 # -- if it proves to be of wider utility than just test_logging