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-rw-r--r--Lib/asyncore.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/Lib/asyncore.py b/Lib/asyncore.py
index 3b51f0f..4b046d6 100644
--- a/Lib/asyncore.py
+++ b/Lib/asyncore.py
@@ -595,7 +595,8 @@ if os.name == 'posix':
def __del__(self):
if self.fd >= 0:
- warnings.warn("unclosed file %r" % self, ResourceWarning)
+ warnings.warn("unclosed file %r" % self, ResourceWarning,
+ source=self)
self.close()
def recv(self, *args):