Two valid use cases are:
word = 'moo'
print( b'something' )
print( f'some {word} here' )
However, upon writing print( it autocompletes to print() which is nice.
But writing b' doesn’t autocomplete to b''
It’s not the end of the world, but when you do it a few hundred times a day, it gets annoying.
This is a bug/feature request so putting i under Feature requests.