catch all exceptions when trying to close the standard streams

Author: timfel

graalpython/lib-graalpython/pyio_patches.py

@@ -95,9 +95,22 @@ def open(*args, **kwargs):
 sys.stderr.mode = "w"
 sys.__stderr__ = sys.stderr
 
+
+# Try to close the std streams when we exit
 import atexit
-atexit.register(sys.stdout.close)
-atexit.register(sys.stderr.close)
+def close_stdouts(so=sys.stdout, se=sys.stderr):
+    try:
+        so.close()
+    except:
+        pass
+    try:
+        se.close()
+    except:
+        pass
+
+
+atexit.register(close_stdouts)
+
 
 # See comment in _pyio.py. This method isn't strictly necessary and is provided
 # on CPython for performance. Because it goes through memoryview, it is slower