[Python-checkins] cpython: whatsnew: linkify some pip things, and explain why non-inheriting is good.
r.david.murray
python-checkins at python.org
Fri Mar 14 01:19:35 CET 2014
http://hg.python.org/cpython/rev/ee635e7d213d
changeset: 89646:ee635e7d213d
user: R David Murray <rdmurray at bitdance.com>
date: Thu Mar 13 19:53:38 2014 -0400
summary:
whatsnew: linkify some pip things, and explain why non-inheriting is good.
files:
Doc/library/venv.rst | 2 ++
Doc/using/unix.rst | 2 ++
Doc/whatsnew/3.4.rst | 27 +++++++++++++++++----------
3 files changed, 21 insertions(+), 10 deletions(-)
diff --git a/Doc/library/venv.rst b/Doc/library/venv.rst
--- a/Doc/library/venv.rst
+++ b/Doc/library/venv.rst
@@ -76,6 +76,8 @@
without there needing to be any reference to its venv in ``PATH``.
+.. _venv-api:
+
API
---
diff --git a/Doc/using/unix.rst b/Doc/using/unix.rst
--- a/Doc/using/unix.rst
+++ b/Doc/using/unix.rst
@@ -60,6 +60,8 @@
prompt.
+.. _building-python-on-unix:
+
Building Python
===============
diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst
--- a/Doc/whatsnew/3.4.rst
+++ b/Doc/whatsnew/3.4.rst
@@ -193,15 +193,16 @@
X.Y stands for the version of the Python installation), along with the
``pip`` Python package and its dependencies.
-The :mod:`venv` module and the :command:`pyvenv` utility make use of this
-module to make ``pip`` readily available in virtual environments. When
-using the command line interface, ``pip`` is installed by default, while
-for the module API installation of ``pip`` must be requested explicitly.
-
-For CPython source builds on POSIX systems, the ``make install`` and
-``make altinstall`` commands bootstrap ``pip`` by default. This behaviour
-can be controlled through configure options, and overridden through
-Makefile options.
+The :ref:`pyvenv <scripts-pyvenv>` command line utility and the :mod:`venv`
+module make use of the :mod:`ensurepip` module to make ``pip`` readily
+available in virtual environments. When using the command line utility, ``pip``
+is installed by default, while when using the :mod:`venv` module
+:ref:`venv-api` installation of ``pip`` must be requested explicitly.
+
+For CPython :ref:`source builds on POSIX systems <building-python-on-unix>`,
+the ``make install`` and ``make altinstall`` commands bootstrap ``pip`` by
+default. This behaviour can be controlled through configure options, and
+overridden through Makefile options.
On Windows and Mac OS X, the CPython installers now offer the option to
install ``pip`` along with CPython itself.
@@ -251,7 +252,13 @@
-----------------------------------------------------------
:pep:`446` makes newly created file descriptors :ref:`non-inheritable
-<fd_inheritance>`. New functions and methods:
+<fd_inheritance>`. In general, this is the behavior an application will
+want: when launching a new process, having currently open files also
+open in the new process can lead to all sorts of hard to find bugs,
+and potentially to security issues.
+
+However, there are occasions when inheritance is desired. To support
+these cases, the following new functions and methods are available:
* :func:`os.get_inheritable`, :func:`os.set_inheritable`
* :func:`os.get_handle_inheritable`, :func:`os.set_handle_inheritable`
--
Repository URL: http://hg.python.org/cpython
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