Title: Theory / Unimportant / CS / Programming / Python / PEP / 236 back to the __future__
Tags: FromInstruction computer_to_instruction hasNotNewEffectReturnsMeaning

Question: How to proceed to an incompatible change in python in some feature f
Answer: In some release, write warning if f is used is some code, telling it might change
Page: https://www.python.org/dev/peps/pep-0236/
Variables: f a feature
Answer2: Allow
from __future__ import f to already move to the new meaning of f
Answer3: Is some later release, move to the new meaning of f

Instruction: from __future__ import f
Page: https://www.python.org/dev/peps/pep-0236/
Effect: change the semantic of feature f in order to use the one which will be the default one in future releases
Language: Python
Variables: f a feature
Where to use it: First line of code, appart from some other future lines