Issue #18394: Explicitly close the file object cgi.FieldStorage

caches.

Eliminates the ResoureWarning raised during testing.

Patch also independently written by Vajrasky Kok.

1 files changed, 6 insertions, 0 deletions

diff --git a/Lib/cgi.py b/Lib/cgi.py
index 4de82ea6df9..b6fd4074546 100755
--- a/Lib/cgi.py
+++ b/Lib/cgi.py
@@ -552,6 +552,12 @@ class FieldStorage:
         else:
             self.read_single()
 
+    def __del__(self):
+        try:
+            self.file.close()
+        except AttributeError:
+            pass
+
     def __repr__(self):
         """Return a printable representation."""
         return "FieldStorage(%r, %r, %r)" % (