🐍 Python - Byte Objects
Bytes objects are immutable sequences of integers between 0 and 255. Byte literals have their own syntax that starts with
arr: bytes = bytes((255, 0, 100, 200)) assert arr == b'\xff\x00d\xc8'
Byte array objects are mutable bytes objects.
arr: bytearray = bytearray((0, 1, 2, 3)) assert arr == b'\x00\x01\x02\x03' arr = 23 assert arr == b'\x00\x01\x02\x17'
Some standard library features will behave differently when given bytes instead of strings.
- Regular expressions:
rb''will only match ASCII characters,
r''also matches Unicode.
osmodule functions work with kernel stuff and usually only support bytes. Conversion from strings to bytes is automatic.
- Python Tricks The Book, Dan Bader
- Fluent Python, Luciano Ramalho