Q:

In Python 3, how can I convert ascii to string, *without encoding/decoding*

Python 3.6
I converted a string from utf8 to this:
b'\xe6\x88\x91\xe6\xb2\xa1\xe6\x9c\x89\xe7\x94\xb5@xn--ssdcsrs-2e1xt16k.com.au'
I now want that chunk of ascii back into string form, so there is no longer the little b for bytes at the beginning.
BUT I don't want it converted back to UTF8, I want that same sequence of characters that you ses above in my Python string.
How can I do so? All I can find are ways of converting bytes to string along with encoding or decoding.

A:

The (wrong) answer is quite simple: 

chr(asciiCode)

In your special case:
myString = ""
for char in b'\xe6\x88\x91\xe6\xb2\xa1\xe6\x9c\x89\xe7\x94\xb5@xn--ssdcsrs-2e1xt16k.com.au':
    myString+=chr(char)
print(myString)

gives: 
ææ²¡æçµ@xn--ssdcsrs-2e1xt16k.com.au

Maybe you are also interested in the right answer? It will probably not please you, because it says you have ALWAYS to deal with encoding/decoding ... because myString is now both UTF-8 and ASCII at the same time (exactly as it already was before you have "converted" it to ASCII). 
Notice that how myString shows up when you print it will depend on the implicit encoding/decoding used by print. 
In other words ... 

there is NO WAY to avoid encoding/decoding

but there is a way of doing it a not explicit way. 
I suppose that reading my answer provided HERE: Converting UTF-8 (in literal) to Umlaute will help you much in understanding the whole encoding/decoding thing. 

