[Python-Dev] Common subset of python 2 and python 3

[Serhiy Storchaka]

15.01.14 14:22, "Martin v. Löwis" написав(ла):
> I don't think that it is possible to write an interpreter that is fully
> compatible for all it accepts. Would you think that the program
>
> print(repr(2**80).endswith("L"))
>
> is in the subset that should be supported by both Python 2 and Python 3?
>
> Notice that it prints "True" in Python 2 and "False" in Python 3.

This is implementation details. On 128-bit platform special build of 
Python 2 can print False.

Of course there are many other differences between Python 2 and Python 3 
besides unicode model and unified integers.