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authoryum <yum.food.vr@gmail.com>2023-01-01 21:05:27 -0800
committeryum <yum.food.vr@gmail.com>2023-01-01 21:44:45 -0800
commite25bdba3a3a53b09be5269d8b065c13b73ab55c3 (patch)
tree1d1dc1d94cde92c2f4f8ce86017395054787515d /Python/Dependencies/future-0.18.2/docs/pasteurize.rst
parent0d408cc812a094a708edbe4baf536e928731cfc3 (diff)
Embed git in package
package.ps1 fetches PortableGit and embeds it in the package. This eliminates all but one runtime dependency (MSVC++ Redistributable). * Move Python into a new FOSS folder.
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-.. _backwards-conversion:
-
-``pasteurize``: Py3 to Py2/3
-----------------------------
-
-Running ``pasteurize -w mypy3module.py`` turns this Python 3 code::
-
- import configparser
- import copyreg
-
- class Blah:
- pass
- print('Hello', end=None)
-
-into this code which runs on both Py2 and Py3::
-
- from __future__ import print_function
- from future import standard_library
- standard_library.install_hooks()
-
- import configparser
- import copyreg
-
- class Blah(object):
- pass
- print('Hello', end=None)
-
-Notice that both ``futurize`` and ``pasteurize`` create explicit new-style
-classes that inherit from ``object`` on both Python versions, and both
-refer to stdlib modules (as well as builtins) under their Py3 names.
-
-Note also that the ``configparser`` module is a special case; there is a full
-backport available on PyPI (https://pypi.org/project/configparser/), so, as
-of v0.16.0, ``python-future`` no longer provides a ``configparser`` package
-alias. To use the resulting code on Py2, install the ``configparser`` backport
-with ``pip install configparser`` or by adding it to your ``requirements.txt``
-file.
-
-``pasteurize`` also handles the following Python 3 features:
-
-- keyword-only arguments
-- metaclasses (using :func:`~future.utils.with_metaclass`)
-- extended tuple unpacking (PEP 3132)
-
-To handle function annotations (PEP 3107), see :ref:`func_annotations`.