On Oct 29, 4:25 pm, Terry Reedy <tjre... at udel.edu> wrote: > Stef Mientki wrote: > > hello, > > > Why gives "k = 09" a syntax error ? > > You have gotten the 2.x answer. In 3.0, 0b,0o,0x prefixes are valid and > required for binary, octal, and hexadecimal literals. 0digits is invalid. > > tjr Is it documented? :-)