In which Python version was feature X introduced?

• Last edited on Feb 3, 2017, 11:15:59 AM by Antti Haapala -- Слава Україні

Python 0.x

• exec function

Python 1.0

• exec statement, exec compatibility syntax

Python 2.0

• list comprehensions

Python 2.1

• PEP 234 - Iterators

Python 2.2

• lexical scoping
• from __future__ import division, //
• new-style classes

Python 2.3

• bool, True and False as bools
• the datetime module

Python 2.4

• PEP 318 - Decorators

Python 2.5

• with statement; usable with from __future__ import with_statement
• set, frozenset

Python 2.6

• json
• with without __future__ imports
• __future__ imports: absolute_import, unicode_literals, print_function
• b'' prefix, bytes

Python 2.7

• set literals {1, 2, 3}
• set comprehensions, dict comprehensions

Python 3.0

• PEP 3132 - Extended iterable unpacking
• bytes, str distinction

Python 3.3

• u'' prefixed unicode literals reintroduced

Python 3.4

• enum.Enum

Python 3.5

• async def, await etc.

Python 3.6

• f'{format} strings'
• asynchronous generator expressions