# test handling of failed heap allocation with dict import micropython # create dict x = 1 micropython.heap_lock() try: {x: x} except MemoryError: print("MemoryError: create dict") micropython.heap_unlock() # create dict view x = {1: 1} micropython.heap_lock() try: x.items() except MemoryError: print("MemoryError: dict.items") micropython.heap_unlock()