micropython/tests/basics/memoryview2.py

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# test memoryview accessing maximum values for signed/unsigned elements
from array import array
print(list(memoryview(b'\x7f\x80\x81\xff')))
print(list(memoryview(array('b', [0x7f, -0x80]))))
print(list(memoryview(array('B', [0x7f, 0x80, 0x81, 0xff]))))
print(list(memoryview(array('h', [0x7f00, -0x8000]))))
print(list(memoryview(array('H', [0x7f00, 0x8000, 0x8100, 0xffff]))))
# these constructors give an internal overflow in uPy
#print(list(memoryview(array('i', [0x7f000000, -0x80000000]))))
#print(list(memoryview(array('I', [0x7f000000, 0x80000000, 0x81000000, 0xffffffff]))))