如何将String拆分为int和bytestring文字

Question

I have the following string:

str = "3, b'\\\\xf3\\\\xc71\\\\xe9\\\\xad_\\\\xce\\\\x8bI\\\\x1c\\\\x04Y\\\\xd5z\\\\xa2Q'"

I need to split it in order to get two variables, an int and a bytestring like so:

number = 3
bytestring = b'\\xf3\\xc71\\xe9\\xad_\\xce\\x8bI\\x1c\\x04Y\\xd5z\\xa2Q'

What I tried doing:

number, bytestring = [s for s in str.split(", ")]
int_number = int(number)
bytestring_in_bytes = bytestring.encode()

This unfortunately didn't work for the bytestring and I ended up with something like this:

bytesring_in_bytes = b"b'\\\\xf3\\\\xc71\\\\xe9\\\\xad_\\\\xce\\\\x8bI\\\\x1c\\\\x04Y\\\\xd5z\\\\xa2Q'"

Any idea how to get the bytestring from the string?

Answer 1

What you here have seems like the textual representation (in Python the repr(..) ) of a bytestring.

You can use ast.literal_eval(..) to convert this to a bytestring:

from ast import 

bytestring_in_bytes = bytestring

Note that in case it contains a str ing, int , etc., then the type of bytestring_in_bytes will be a str , int , etc. as well.