Python 返回的 to_bytes 不符合预期

Question

(1112).to_bytes(8, 'big')

Return:
# b'\x00\x00\x00\x00\x00\x00\x04X'

Expected:
# b'\x00\x00\x00\x00\x00\x00\x04\x58'

If I convert back from

# b'\x00\x00\x00\x00\x00\x00\x04X'

then the result is still 1112. Is this just a print issue with encoding?

Answer 1

This is normal behavior for bytes strings. Their printable representations show ASCII characters if possible, the hex values otherwise. As an example to show the expected value is still there:

>>> a = (1112).to_bytes(8, 'big')
>>> a
b'\x00\x00\x00\x00\x00\x00\x04X'
>>> hex(a[7])
'0x58'
>>> chr(a[7])
'X'