如何将表示为字符串的字节转换为实际字节

Question

Suppose we have a string that looks like this:

fake_bytes = "b'This is a check - \xe2\x9c\x94\xef\xb8\x8f'"

So this fake_bytes string is a text that is encoded in bytes and visually converted to string (without decoding the bytes).

The question is how to convert fake_bytes again to bytes without encoding its contents again to get something like that:

real_bytes = b'This is a check - \xe2\x9c\x94\xef\xb8\x8f'

The real_bytes is bytes with the same contents as a string and can be decoded to the original text later:

>>> real_bytes.decode()
check ✔️

Answer 1

Python 3.9.7 (default, Sep 16 2021, 13:09:58)
[GCC 7.5.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> fake_bytes = "b'This is a check - \xe2\x9c\x94\xef\xb8\x8f'"
>>> x = fake_bytes.encode('utf-8')[2:-1]
>>> x
b'This is a check - \xc3\xa2\xc2\x9c\xc2\x94\xc3\xaf\xc2\xb8\xc2\x8f'