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Add pep 435 summary entry in new required features, and ensurepip description.

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Also added a note about platform packagers not being required to install
pip by default, if they provide an appropriate pip hook, to the PEP
description section.
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R David Murray 2013-12-23 11:17:51 -05:00
parent f9976e7254
commit 68790662fc
1 changed files with 34 additions and 0 deletions
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34
Doc/whatsnew/3.4.rst
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@ -90,6 +90,7 @@ New syntax features:
New expected features for Python implementations: New expected features for Python implementations:
* :ref:`pip should always be "available" <whatsnew-pep-453>` (:pep:`453`).
* :ref:`Make newly created file descriptors non-inheritable <whatsnew-pep-446>` * :ref:`Make newly created file descriptors non-inheritable <whatsnew-pep-446>`
(:pep:`446`). (:pep:`446`).
* command line option for :ref:`isolated mode <using-on-misc-options>`, * command line option for :ref:`isolated mode <using-on-misc-options>`,
@ -146,6 +147,8 @@ sections on deprecations and porting issues.
New expected features for Python implementations New expected features for Python implementations
================================================ ================================================
.. _whatsnew-pep-453:
PEP 453: Explicit bootstrapping of pip in Python installations PEP 453: Explicit bootstrapping of pip in Python installations
-------------------------------------------------------------- --------------------------------------------------------------
@ -166,6 +169,12 @@ Makefile options.
On Windows and Mac OS X, the CPython installers now offer the option to On Windows and Mac OS X, the CPython installers now offer the option to
install ``pip`` along with CPython itself. install ``pip`` along with CPython itself.
As `discussed in the PEP`__, platform packagers may choose not to install
``pip`` by default, as long as the command ``pip``, when invoked, provides
clear and simple directions on how to install ``pip`` on the platform.
__ http://www.python.org/dev/peps/pep-0453/#recommendations-for-downstream-distributors
.. note:: .. note::
The implementation of PEP 453 is still a work in progress. Refer to The implementation of PEP 453 is still a work in progress. Refer to
@ -346,6 +355,31 @@ For Python 3.4, this module is considered a :term:`provisional API`.
:pep:`3156` - Asynchronous IO Support Rebooted: the "asyncio" Module :pep:`3156` - Asynchronous IO Support Rebooted: the "asyncio" Module
PEP written and implementation led by Guido van Rossum. PEP written and implementation led by Guido van Rossum.
.. _whatsnew-ensurepip
ensurepip
---------
The new :mod:`ensurepip` module is the primary infrastructure for the
:pep:`453` implementation. In the normal course of events end users will not
need to interact with this module, but it can be used to manually bootstrap
``pip`` if the automated bootstrapping into an installation or virtual
environment was declined.
:mod:`ensurepip` includes a bundled copy of ``pip``, up-to-date as of the first
release candidate of the release of CPython with which it ships (this applies
to both maintenance releases and feature releases). ``ensurepip`` does not
access the internet. (If the installation has Internet access, it is of course
possible to upgrade ``pip`` to a release more recent than the bundled ``pip``
by using the bundled ``pip`` command itself once it is installed.)
The module is named *ensure*\ pip because if called when ``pip`` is already
installed, it does nothing. It also has an ``--upgrade`` option that will
cause it to install the bundled copy of ``pip`` if the existing installed
version of ``pip`` is older than the bundled copy.
enum enum
---- ----