On Sun, 1 May 2022 at 00:03, Vlastimil Brom <vlastimil.brom at gmail.com> wrote: > (Even the redundant u prefix from your python2 sample is apparently > accepted, maybe for compatibility reasons.) Yes, for compatibility reasons. It wasn't accepted in Python 3.0, but 3.3 re-added it to make porting easier. It doesn't do anything. ChrisA