This release fixes compatibility bugs with CherryPy’s Py2/3 compat layer and
the latest version of the urllib3 package. It also adds some additional
backports for Py2.6 and Py2.7 from Py3.4’s standard library.
New features:
install_aliases() now exposes full backports of the Py3 urllib submodules
(parse, request etc.) from future.backports.urllib as submodules
of urllib on Py2. This implies, for example, that
urllib.parse.unquote now takes an optional encoding argument as it does
on Py3. This improves compatibility with CherryPy’s Py2/3 compat layer (issue
#158).tkinter.ttk support (issue #151)collections.ChainMap (issue #150)itertools.count for Py2.6 (issue #152)surrogateescape error handler for newstr and newbytes objects on Py2.x (issue #116). This feature is currently in alpha.http.client such as HTTP_PORT and BAD_REQUEST (issue #137)reprlib.recursive_repr to Py2Bug fixes:
HTTPMessage to http.client, which is missing from httplib.__all__ on Python <= 2.7.10. This restores compatibility with the latest urllib3 package (issue #159, thanks to Waldemar Kornewald)Counter and OrderedDict to use the newer
implementations from Py3.4. This fixes .copy() preserving subclasses etc.futurize no longer breaks working Py2 code by changing basestring to
str. Instead it imports the basestring forward-port from
past.builtins (issues #127 and #156)future.utils: add string_types etc. and update docs (issue #126)This is a bug-fix release:
thread (not dummy_thread) as _thread on Py2 (issue #124)newint.to_bytes() (issue #128)OrderedDict.clear() on Py2.6 (issue #125)newrange: equality and slicing, start/stop/step properties, refactoring (issues #129, #130)This is a bug-fix release:
past.translation (issue #117)html.escape(): replace function with the more robust one from Py3.4setup.py (issue #108)install_aliases() instead of
install_hooks()iteritems import error in cheat sheet (issue #120)test.test_support on Py2 or test.support on Py3 (issue #109)PYTHONPATH for tests (PR #111)This is a minor bug-fix release:
test.test_support module always
exists on Py2 (issue #109)This is a major new release that offers a cleaner interface for most imports in Python 2/3 compatible code.
Instead of this interface:
>>> from future.builtins import str, open, range, dict
>>> from future.standard_library import hooks
>>> with hooks():
... import queue
... import configparser
... import tkinter.dialog
... # etc.
you can now use the following interface for much Python 2/3 compatible code:
>>> # Alias for future.builtins on Py2:
>>> from builtins import str, open, range, dict
>>> # Alias for future.moves.* on Py2:
>>> import queue
>>> import configparser
>>> import tkinter.dialog
>>> etc.
Notice that the above code will run on Python 3 even without the presence of the
future package. Of the 44 standard library modules that were refactored with
PEP 3108, 30 are supported with direct imports in this manner. (These are listed
here: Direct imports.)
The other 14 standard library modules that kept the same top-level names in
Py3.x are not supported with this direct import interface on Py2. These include
the 5 modules in the Py3 urllib package. These modules are accessible through
the following interface (as well as the interfaces offered in previous versions
of python-future):
from future.standard_library import install_aliases
install_aliases()
from collections import UserDict, UserList, UserString
import dbm.gnu
from itertools import filterfalse, zip_longest
from subprocess import getoutput, getstatusoutput
from sys import intern
import test.support
from urllib.request import urlopen
from urllib.parse import urlparse
# etc.
from collections import Counter, OrderedDict # backported to Py2.6
The complete list of packages supported with this interface is here: Aliased imports.
For more information on these and other interfaces to the standard library, see Standard library imports.
future.moves package to include most of the remaining
modules that were moved in the standard library reorganization (PEP 3108).
(Issue #104).--doctests_only option from the futurize
and pasteurize scripts for now (issue #103).The project folder structure has changed. Top-level packages are now in a
src folder and the tests have been moved into a project-level tests
folder.
The following deprecated internal modules have been removed (issue #80):
future.utils.encoding and future.utils.six.The following internal functions have been deprecated and will be removed in a future release:
future.standard_library.scrub_py2_sys_modulesfuture.standard_library.scrub_future_sys_modulesSee Changes in previous versions for versions prior to v0.14.