int.to_bytes
- int.to_bytes(length=1, byteorder='big', *, signed=False)
Return an array of bytes representing an integer. length Length of bytes object to use. An OverflowError is raised if the integer is not representable with the given number of bytes. Default is length 1. byteorder The byte order used to represent the integer. If byteorder is 'big', the most significant byte is at the beginning of the byte array. If byteorder is 'little', the most significant byte is at the end of the byte array. To request the native byte order of the host system, use sys.byteorder as the byte order value. Default is to use 'big'. signed Determines whether two's complement is used to represent the integer. If signed is False and a negative integer is given, an OverflowError is raised.
© Python Software Foundation. PSF License Version 2 · Official docs ↗
Changed in 3.11
- 3.11: Added default argument values for length and byteorder.
1 Example
>>> (1024).to_bytes(2, byteorder='big') b'\x04\x00' >>> (1024).to_bytes(10, byteorder='big') b'\x00\x00\x00\x00\x00\x00\x00\x00\x04\x00' >>> (-1024).to_bytes(10, byteorder='big', signed=True) b'\xff\xff\xff\xff\xff\xff\xff\xff\xfc\x00' >>> x = 1000 >>> x.to_bytes((x.bit_length() + 7) // 8, byteorder='little') b'\xe8\x03'
from the Python docs