Ignore errors in call to close from __del__ (#326)

Author: almarklein

wgpu/gui/base.py

@@ -140,7 +140,10 @@ def __init__(self, *args, max_fps=30, vsync=True, **kwargs):
         self._err_hashes = {}
 
     def __del__(self):
-        self.close()
+        try:
+            self.close()
+        except Exception:
+            pass
 
     def draw_frame(self):
         """The function that gets called at each draw. You can implement