comparison planemo/lib/python3.7/site-packages/future/__init__.py @ 0:d30785e31577 draft

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date Fri, 31 Jul 2020 00:18:57 -0400
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1 """
2 future: Easy, safe support for Python 2/3 compatibility
3 =======================================================
4
5 ``future`` is the missing compatibility layer between Python 2 and Python
6 3. It allows you to use a single, clean Python 3.x-compatible codebase to
7 support both Python 2 and Python 3 with minimal overhead.
8
9 It is designed to be used as follows::
10
11 from __future__ import (absolute_import, division,
12 print_function, unicode_literals)
13 from builtins import (
14 bytes, dict, int, list, object, range, str,
15 ascii, chr, hex, input, next, oct, open,
16 pow, round, super,
17 filter, map, zip)
18
19 followed by predominantly standard, idiomatic Python 3 code that then runs
20 similarly on Python 2.6/2.7 and Python 3.3+.
21
22 The imports have no effect on Python 3. On Python 2, they shadow the
23 corresponding builtins, which normally have different semantics on Python 3
24 versus 2, to provide their Python 3 semantics.
25
26
27 Standard library reorganization
28 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
29
30 ``future`` supports the standard library reorganization (PEP 3108) through the
31 following Py3 interfaces:
32
33 >>> # Top-level packages with Py3 names provided on Py2:
34 >>> import html.parser
35 >>> import queue
36 >>> import tkinter.dialog
37 >>> import xmlrpc.client
38 >>> # etc.
39
40 >>> # Aliases provided for extensions to existing Py2 module names:
41 >>> from future.standard_library import install_aliases
42 >>> install_aliases()
43
44 >>> from collections import Counter, OrderedDict # backported to Py2.6
45 >>> from collections import UserDict, UserList, UserString
46 >>> import urllib.request
47 >>> from itertools import filterfalse, zip_longest
48 >>> from subprocess import getoutput, getstatusoutput
49
50
51 Automatic conversion
52 --------------------
53
54 An included script called `futurize
55 <http://python-future.org/automatic_conversion.html>`_ aids in converting
56 code (from either Python 2 or Python 3) to code compatible with both
57 platforms. It is similar to ``python-modernize`` but goes further in
58 providing Python 3 compatibility through the use of the backported types
59 and builtin functions in ``future``.
60
61
62 Documentation
63 -------------
64
65 See: http://python-future.org
66
67
68 Credits
69 -------
70
71 :Author: Ed Schofield, Jordan M. Adler, et al
72 :Sponsor: Python Charmers Pty Ltd, Australia, and Python Charmers Pte
73 Ltd, Singapore. http://pythoncharmers.com
74 :Others: See docs/credits.rst or http://python-future.org/credits.html
75
76
77 Licensing
78 ---------
79 Copyright 2013-2019 Python Charmers Pty Ltd, Australia.
80 The software is distributed under an MIT licence. See LICENSE.txt.
81
82 """
83
84 __title__ = 'future'
85 __author__ = 'Ed Schofield'
86 __license__ = 'MIT'
87 __copyright__ = 'Copyright 2013-2019 Python Charmers Pty Ltd'
88 __ver_major__ = 0
89 __ver_minor__ = 18
90 __ver_patch__ = 2
91 __ver_sub__ = ''
92 __version__ = "%d.%d.%d%s" % (__ver_major__, __ver_minor__,
93 __ver_patch__, __ver_sub__)