Important questions about __future__

[Andrew Berg]

Does 'from __future__ import barry_as_FLUFL' do anything? Despite PEP
401, using print as a statement still raises a SyntaxError.
Where is 'from __future__ import braces' implemented in CPython (it's
not in __future__.py)?

 

[Ramchandra Apte]

Does 'from __future__ import barry_as_FLUFL' do anything? Despite PEP

401, using print as a statement still raises a SyntaxError.

Where is 'from __future__ import braces' implemented in CPython (it's

not in __future__.py)?

barry_as_FLUFL is probably simply a joke future statement (Barry is at the head of Python Development and would probably replace Guido in the future) (Guido is typically only active on python-ideas).
from __future__ import braces is the Future statement (see http://docs.python.org/3/library/__future__.html)
import __future__ simply imports __future__.py as a plain, ordinary module

 

[Ramchandra Apte]

Does 'from __future__ import barry_as_FLUFL' do anything? Despite PEP

401, using print as a statement still raises a SyntaxError.

Where is 'from __future__ import braces' implemented in CPython (it's

not in __future__.py)?

barry_as_FLUFL is probably simply a joke future statement (Barry is at the head of Python Development and would probably replace Guido in the future) (Guido is typically only active on python-ideas).
from __future__ import braces is the Future statement (see http://docs.python.org/3/library/__future__.html)
import __future__ simply imports __future__.py as a plain, ordinary module

 

[Ramchandra Apte]

barry_as_FLUFL is probably simply a joke future statement (Barry is at the head of Python Development and would probably replace Guido in the future) (Guido is typically only active on python-ideas).

from __future__ import braces is the Future statement (see http://docs.python.org/3/library/__future__.html)

import __future__ simply imports __future__.py as a plain, ordinary module

Link should have been http://docs.python.org/3/reference/simple_stmts.html#future

 

[Ramchandra Apte]

barry_as_FLUFL is probably simply a joke future statement (Barry is at the head of Python Development and would probably replace Guido in the future) (Guido is typically only active on python-ideas).

from __future__ import braces is the Future statement (see http://docs.python.org/3/library/__future__.html)

import __future__ simply imports __future__.py as a plain, ordinary module

Link should have been http://docs.python.org/3/reference/simple_stmts.html#future

 

[Steven D'Aprano]

Does 'from __future__ import barry_as_FLUFL' do anything?

Yes, it re-enables <> and disables != as not equal:

py> sys.version
'3.3.0rc3 (default, Sep 27 2012, 18:44:58) \n[GCC 4.1.2 20080704 (Red Hat
4.1.2-52)]'
py> 1 <> 2
File "<stdin>", line 1
1 <> 2
^
SyntaxError: invalid syntax
py> from __future__ import barry_as_FLUFL
py> 1 <> 2
True

Where is
'from __future__ import braces' implemented in CPython (it's not in
__future__.py)?

It's defined in the C source code for the CPython compiler. Look in
future.c.

http://hg.python.org/cpython/file/944e86223d1f/Python/future.c