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I have a string as follows:
b'\x00\x00\x00\x00\x07\x80\x00\x03'
How can I convert this to an array of bytes? ... and back to a string from the bytes?
566
The difference between bytes() and bytearray() is that bytes() returns an object that cannot be modified, and bytearray() returns an object that can be modified.
Byte objects are sequence of Bytes, whereas Strings are sequence of characters. Byte objects are in machine readable form internally, Strings are only in human readable form. Since Byte objects are machine readable, they can be directly stored on the disk.
The Python bytearray() function converts strings or collections of integers into a mutable sequence of bytes. It provides developers the usual methods Python affords to both mutable and byte data types.
in python 3:
>>> a=b'\x00\x00\x00\x00\x07\x80\x00\x03'
>>> b = list(a)
>>> b
[0, 0, 0, 0, 7, 128, 0, 3]
>>> c = bytes(b)
>>> c
b'\x00\x00\x00\x00\x07\x80\x00\x03'
>>>
From string to array of bytes:
a = bytearray.fromhex('00 00 00 00 07 80 00 03')
or
a = bytearray(b'\x00\x00\x00\x00\x07\x80\x00\x03')
and back to string:
key = ''.join(chr(x) for x in a)
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