Alexandre Vassalotti <alexan...@peadrop.com> added the comment: I went ahead and coded a new API for converting long integers to byte arrays and vice-versa. My patch adds two new methods to the long type: .as_bytes() and .frombytes(). The patch itself is well-documented; but nevertheless, here's some examples:
>>> (1024).as_bytes() b'\x04\x00' >>> (1024).as_bytes(fixed_length=10) b'\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00' >>> (-1024).as_bytes(fixed_length=10) b'\xff\xff\xff\xff\xff\xff\xff\xff\xfc\x00' >>> (-1024).as_bytes(little_endian=True) b'\x00\xfc' >>> ((2**16)-1).as_bytes(fixed_length=2, signed=False) b'\xff\xff' >>> int.frombytes(b'\x00\x10') 16 >>> int.frombytes(b'\x00\x10', little_endian=True) 4096 >>> int.frombytes(b'\xfc\x00') -1024 >>> int.frombytes(b'\xfc\x00', signed=False) 64512 This patch depends on another patch posted in issue #6687. So, apply the other patch before testing this one. ---------- nosy: +alexandre.vassalotti Added file: http://bugs.python.org/file14695/long_and_bytes_conversion.diff _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue1023290> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
