Fixing - Issue7026 - RuntimeError: dictionary changed size during iteration. Patch by flox
diff --git a/Lib/test/test_gzip.py b/Lib/test/test_gzip.py
index 60094dc..ed5aa96 100644
--- a/Lib/test/test_gzip.py
+++ b/Lib/test/test_gzip.py
@@ -246,11 +246,11 @@
             self.fail("__enter__ on a closed file didn't raise an exception")
         try:
             with gzip.GzipFile(self.filename, "wb") as f:
-                1/0
+                1 // 0
         except ZeroDivisionError:
             pass
         else:
-            self.fail("1/0 didn't raise an exception")
+            self.fail("1 // 0 didn't raise an exception")
 
 def test_main(verbose=None):
     test_support.run_unittest(TestGzip)