> The line "optional 16bits characters strings" also makes me worry a little Especially since the other option isn't 32 bits, like it was in Python versions be

> The line "optional 16bits characters strings" also makes me worry a little Especially since the other option isn't 32 bits, like it was in Python versions before 3.3 (which implemented PEP 393: "Flexible String Representation"). So you can only choose between broken Unicode (no characters outside the basic multilingual plane) or no Unicode at all.