# test handling of failed heap allocation with memoryview import micropython class GetSlice: def __getitem__(self, idx): return idx sl = GetSlice()[:] # create memoryview micropython.heap_lock() try: memoryview(b"") except MemoryError: print("MemoryError: memoryview create") micropython.heap_unlock() # memoryview get with slice m = memoryview(b"") micropython.heap_lock() try: m[sl] except MemoryError: print("MemoryError: memoryview subscr get") micropython.heap_unlock()