How to write code that works in both Python 2 and Python 3?

Question

A Django website I maintain currently uses Python 2.7 but I know that I\'ll have to upgrade it to Python 3 in a couple of months. If I\'m writing code right now that has to

Answer 1

you can import the future package

from future import ....

nested_scopes 2.1.0b1 2.2 PEP 227: Statically Nested Scopes

generators 2.2.0a1 2.3 PEP 255: Simple Generators

division 2.2.0a2 3.0 PEP 238: Changing the Division Operator

absolute_import 2.5.0a1 3.0 PEP 328: Imports: Multi-Line and Absolute/Relative

with_statement 2.5.0a1 2.6 PEP 343: The “with” Statement

print_function 2.6.0a2 3.0 PEP 3105: Make print a function

unicode_literals 2.6.0a2 3.0 PEP 3112: Bytes literals in Python 3000