Commit 0c9d7a70 authored by Jason R. Coombs's avatar Jason R. Coombs Committed by GitHub

Merge pull request #1868 from benoit-pierre/drop-most-documentation-references-to-easy_install

doc: drop most references to EasyInstall
parents ca45fb96 4c0e2044
Drop most documentation references to (deprecated) EasyInstall.
......@@ -7,7 +7,7 @@ Authority (PyPA) and led by Jason R. Coombs.
This document describes the process by which Setuptools is developed.
This document assumes the reader has some passing familiarity with
*using* setuptools, the ``pkg_resources`` module, and EasyInstall. It
*using* setuptools, the ``pkg_resources`` module, and pip. It
does not attempt to explain basic concepts like inter-project
dependencies, nor does it contain detailed lexical syntax for most
file formats. Neither does it explain concepts like "namespace
......
......@@ -299,11 +299,8 @@ specified by the ``setup_requires`` parameter to the Distribution.
A list of dependency URLs, one per line, as specified using the
``dependency_links`` keyword to ``setup()``. These may be direct
download URLs, or the URLs of web pages containing direct download
links, and will be used by EasyInstall to find dependencies, as though
the user had manually provided them via the ``--find-links`` command
line option. Please see the setuptools manual and EasyInstall manual
for more information on specifying this option, and for information on
how EasyInstall processes ``--find-links`` URLs.
links. Please see the setuptools manual for more information on
specifying this option.
``depends.txt`` -- Obsolete, do not create!
......
......@@ -245,8 +245,8 @@ abbreviation for ``pkg_resources.working_set.require()``:
interactive interpreter hacking than for production use. If you're creating
an actual library or application, it's strongly recommended that you create
a "setup.py" script using ``setuptools``, and declare all your requirements
there. That way, tools like EasyInstall can automatically detect what
requirements your package has, and deal with them accordingly.
there. That way, tools like pip can automatically detect what requirements
your package has, and deal with them accordingly.
Note that calling ``require('SomePackage')`` will not install
``SomePackage`` if it isn't already present. If you need to do this, you
......@@ -611,9 +611,9 @@ Requirements Parsing
or activation of both Report-O-Rama and any libraries it needs in order to
provide PDF support. For example, you could use::
easy_install.py Report-O-Rama[PDF]
pip install Report-O-Rama[PDF]
To install the necessary packages using the EasyInstall program, or call
To install the necessary packages using pip, or call
``pkg_resources.require('Report-O-Rama[PDF]')`` to add the necessary
distributions to sys.path at runtime.
......@@ -1843,9 +1843,9 @@ History
because it isn't necessarily a filesystem path (and hasn't been for some
time now). The ``location`` of ``Distribution`` objects in the filesystem
should always be normalized using ``pkg_resources.normalize_path()``; all
of the setuptools and EasyInstall code that generates distributions from
the filesystem (including ``Distribution.from_filename()``) ensure this
invariant, but if you use a more generic API like ``Distribution()`` or
of the setuptools' code that generates distributions from the filesystem
(including ``Distribution.from_filename()``) ensure this invariant, but if
you use a more generic API like ``Distribution()`` or
``Distribution.from_location()`` you should take care that you don't
create a distribution with an un-normalized filesystem path.
......
......@@ -19,12 +19,6 @@ package from source and doesn't have a suitable version already installed.
Feature Highlights:
* Automatically find/download/install/upgrade dependencies at build time using
the `EasyInstall tool <easy_install.html>`_,
which supports downloading via HTTP, FTP, Subversion, and SourceForge, and
automatically scans web pages linked from PyPI to find download links. (It's
the closest thing to CPAN currently available for Python.)
* Create `Python Eggs <http://peak.telecommunity.com/DevCenter/PythonEggs>`_ -
a single-file importable distribution format
......@@ -73,10 +67,6 @@ Developer's Guide
Installing ``setuptools``
=========================
.. _EasyInstall Installation Instructions: easy_install.html
.. _Custom Installation Locations: easy_install.html
.. _Installing Packages: https://packaging.python.org/tutorials/installing-packages/
To install the latest version of setuptools, use::
......@@ -160,7 +150,7 @@ Specifying Your Project's Version
Setuptools can work well with most versioning schemes; there are, however, a
few special things to watch out for, in order to ensure that setuptools and
EasyInstall can always tell what version of your package is newer than another
other tools can always tell what version of your package is newer than another
version. Knowing these things will also help you correctly specify what
versions of other projects your project depends on.
......@@ -301,11 +291,10 @@ unless you need the associated ``setuptools`` feature.
``setup_requires``
A string or list of strings specifying what other distributions need to
be present in order for the *setup script* to run. ``setuptools`` will
attempt to obtain these (even going so far as to download them using
``EasyInstall``) before processing the rest of the setup script or commands.
This argument is needed if you are using distutils extensions as part of
your build process; for example, extensions that process setup() arguments
and turn them into EGG-INFO metadata files.
attempt to obtain these before processing the rest of the setup script or
commands. This argument is needed if you are using distutils extensions as
part of your build process; for example, extensions that process setup()
arguments and turn them into EGG-INFO metadata files.
(Note: projects listed in ``setup_requires`` will NOT be automatically
installed on the system where the setup script is being run. They are
......@@ -318,8 +307,7 @@ unless you need the associated ``setuptools`` feature.
A list of strings naming URLs to be searched when satisfying dependencies.
These links will be used if needed to install packages specified by
``setup_requires`` or ``tests_require``. They will also be written into
the egg's metadata for use by tools like EasyInstall to use when installing
an ``.egg`` file.
the egg's metadata for use during install by tools that support them.
``namespace_packages``
A list of strings naming the project's "namespace packages". A namespace
......@@ -353,8 +341,7 @@ unless you need the associated ``setuptools`` feature.
needed to install it, you can use this option to specify them. It should
be a string or list of strings specifying what other distributions need to
be present for the package's tests to run. When you run the ``test``
command, ``setuptools`` will attempt to obtain these (even going
so far as to download them using ``EasyInstall``). Note that these
command, ``setuptools`` will attempt to obtain these. Note that these
required projects will *not* be installed on the system where the tests
are run, but only downloaded to the project's setup directory if they're
not already installed locally.
......@@ -558,11 +545,12 @@ script called ``baz``, you might do something like this::
)
When this project is installed on non-Windows platforms (using "setup.py
install", "setup.py develop", or by using EasyInstall), a set of ``foo``,
``bar``, and ``baz`` scripts will be installed that import ``main_func`` and
``some_func`` from the specified modules. The functions you specify are called
with no arguments, and their return value is passed to ``sys.exit()``, so you
can return an errorlevel or message to print to stderr.
install", "setup.py develop", or with pip), a set of ``foo``, ``bar``,
and ``baz`` scripts will be installed that import ``main_func`` and
``some_func`` from the specified modules. The functions you specify are
called with no arguments, and their return value is passed to
``sys.exit()``, so you can return an errorlevel or message to print to
stderr.
On Windows, a set of ``foo.exe``, ``bar.exe``, and ``baz.exe`` launchers are
created, alongside a set of ``foo.py``, ``bar.py``, and ``baz.pyw`` files. The
......@@ -619,7 +607,7 @@ Declaring Dependencies
``setuptools`` supports automatically installing dependencies when a package is
installed, and including information about dependencies in Python Eggs (so that
package management tools like EasyInstall can use the information).
package management tools like pip can use the information).
``setuptools`` and ``pkg_resources`` use a common syntax for specifying a
project's required dependencies. This syntax consists of a project's PyPI
......@@ -658,10 +646,9 @@ requirement in a string, each requirement must begin on a new line.
This has three effects:
1. When your project is installed, either by using EasyInstall, ``setup.py
install``, or ``setup.py develop``, all of the dependencies not already
installed will be located (via PyPI), downloaded, built (if necessary),
and installed.
1. When your project is installed, either by using pip, ``setup.py install``,
or ``setup.py develop``, all of the dependencies not already installed will
be located (via PyPI), downloaded, built (if necessary), and installed.
2. Any scripts in your project will be installed with wrappers that verify
the availability of the specified dependencies at runtime, and ensure that
......@@ -735,9 +722,8 @@ This will do a checkout (or a clone, in Git and Mercurial parlance) to a
temporary folder and run ``setup.py bdist_egg``.
The ``dependency_links`` option takes the form of a list of URL strings. For
example, the below will cause EasyInstall to search the specified page for
eggs or source distributions, if the package's dependencies aren't already
installed::
example, this will cause a search of the specified page for eggs or source
distributions, if the package's dependencies aren't already installed::
setup(
...
......@@ -777,7 +763,7 @@ names of "extra" features, to strings or lists of strings describing those
features' requirements. These requirements will *not* be automatically
installed unless another package depends on them (directly or indirectly) by
including the desired "extras" in square brackets after the associated project
name. (Or if the extras were listed in a requirement spec on the EasyInstall
name. (Or if the extras were listed in a requirement spec on the "pip install"
command line.)
Extras can be used by a project's `entry points`_ to specify dynamic
......@@ -1192,13 +1178,12 @@ preferred way of working (as opposed to using a common independent staging area
or the site-packages directory).
To do this, use the ``setup.py develop`` command. It works very similarly to
``setup.py install`` or the EasyInstall tool, except that it doesn't actually
install anything. Instead, it creates a special ``.egg-link`` file in the
deployment directory, that links to your project's source code. And, if your
deployment directory is Python's ``site-packages`` directory, it will also
update the ``easy-install.pth`` file to include your project's source code,
thereby making it available on ``sys.path`` for all programs using that Python
installation.
``setup.py install``, except that it doesn't actually install anything.
Instead, it creates a special ``.egg-link`` file in the deployment directory,
that links to your project's source code. And, if your deployment directory is
Python's ``site-packages`` directory, it will also update the
``easy-install.pth`` file to include your project's source code, thereby making
it available on ``sys.path`` for all programs using that Python installation.
If you have enabled the ``use_2to3`` flag, then of course the ``.egg-link``
will not link directly to your source code when run under Python 3, since
......@@ -1318,20 +1303,14 @@ you've checked over all the warnings it issued, and you are either satisfied it
doesn't work, you can always change it to ``False``, which will force
``setuptools`` to install your project as a directory rather than as a zipfile.
Of course, the end-user can still override either decision, if they are using
EasyInstall to install your package. And, if you want to override for testing
purposes, you can just run ``setup.py easy_install --zip-ok .`` or ``setup.py
easy_install --always-unzip .`` in your project directory. to install the
package as a zipfile or directory, respectively.
In the future, as we gain more experience with different packages and become
more satisfied with the robustness of the ``pkg_resources`` runtime, the
"zip safety" analysis may become less conservative. However, we strongly
recommend that you determine for yourself whether your project functions
correctly when installed as a zipfile, correct any problems if you can, and
then make an explicit declaration of ``True`` or ``False`` for the ``zip_safe``
flag, so that it will not be necessary for ``bdist_egg`` or ``EasyInstall`` to
try to guess whether your project can work as a zipfile.
flag, so that it will not be necessary for ``bdist_egg`` to try to guess
whether your project can work as a zipfile.
.. _Namespace Packages:
......@@ -1445,9 +1424,9 @@ to generate a daily build or snapshot for. See the section below on the
(Also, before you release your project, be sure to see the section above on
`Specifying Your Project's Version`_ for more information about how pre- and
post-release tags affect how setuptools and EasyInstall interpret version
numbers. This is important in order to make sure that dependency processing
tools will know which versions of your project are newer than others.)
post-release tags affect how version numbers are interpreted. This is
important in order to make sure that dependency processing tools will know
which versions of your project are newer than others.)
Finally, if you are creating builds frequently, and either building them in a
downloadable location or are copying them to a distribution server, you should
......@@ -1503,58 +1482,6 @@ all practical purposes, you'll probably use only the ``--formats`` option, if
you use any option at all.
Making your package available for EasyInstall
---------------------------------------------
There may be reasons why you don't want to upload distributions to
PyPI, and just want your existing distributions (or perhaps a Subversion
checkout) to be used instead.
There are three ``setup()`` arguments that affect EasyInstall:
``url`` and ``download_url``
These become links on your project's PyPI page. EasyInstall will examine
them to see if they link to a package ("primary links"), or whether they are
HTML pages. If they're HTML pages, EasyInstall scans all HREF's on the
page for primary links
``long_description``
EasyInstall will check any URLs contained in this argument to see if they
are primary links.
A URL is considered a "primary link" if it is a link to a .tar.gz, .tgz, .zip,
.egg, .egg.zip, .tar.bz2, or .exe file, or if it has an ``#egg=project`` or
``#egg=project-version`` fragment identifier attached to it. EasyInstall
attempts to determine a project name and optional version number from the text
of a primary link *without* downloading it. When it has found all the primary
links, EasyInstall will select the best match based on requested version,
platform compatibility, and other criteria.
So, if your ``url`` or ``download_url`` point either directly to a downloadable
source distribution, or to HTML page(s) that have direct links to such, then
EasyInstall will be able to locate downloads automatically. If you want to
make Subversion checkouts available, then you should create links with either
``#egg=project`` or ``#egg=project-version`` added to the URL. You should
replace ``project`` and ``version`` with the values they would have in an egg
filename. (Be sure to actually generate an egg and then use the initial part
of the filename, rather than trying to guess what the escaped form of the
project name and version number will be.)
Note that Subversion checkout links are of lower precedence than other kinds
of distributions, so EasyInstall will not select a Subversion checkout for
downloading unless it has a version included in the ``#egg=`` suffix, and
it's a higher version than EasyInstall has seen in any other links for your
project.
As a result, it's a common practice to use mark checkout URLs with a version of
"dev" (i.e., ``#egg=projectname-dev``), so that users can do something like
this::
easy_install --editable projectname==dev
in order to check out the in-development version of ``projectname``.
Making "Official" (Non-Snapshot) Releases
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
......@@ -1809,9 +1736,9 @@ Here are some of the options that the ``develop`` command accepts. Note that
they affect the project's dependencies as well as the project itself, so if you
have dependencies that need to be installed and you use ``--exclude-scripts``
(for example), the dependencies' scripts will not be installed either! For
this reason, you may want to use EasyInstall to install the project's
dependencies before using the ``develop`` command, if you need finer control
over the installation options for dependencies.
this reason, you may want to use pip to install the project's dependencies
before using the ``develop`` command, if you need finer control over the
installation options for dependencies.
``--uninstall, -u``
Un-deploy the current project. You may use the ``--install-dir`` or ``-d``
......@@ -1821,10 +1748,10 @@ over the installation options for dependencies.
staging area is Python's ``site-packages`` directory.
Note that this option currently does *not* uninstall script wrappers! You
must uninstall them yourself, or overwrite them by using EasyInstall to
activate a different version of the package. You can also avoid installing
script wrappers in the first place, if you use the ``--exclude-scripts``
(aka ``-x``) option when you run ``develop`` to deploy the project.
must uninstall them yourself, or overwrite them by using pip to install a
different version of the package. You can also avoid installing script
wrappers in the first place, if you use the ``--exclude-scripts`` (aka
``-x``) option when you run ``develop`` to deploy the project.
``--multi-version, -m``
"Multi-version" mode. Specifying this option prevents ``develop`` from
......@@ -1833,8 +1760,8 @@ over the installation options for dependencies.
removed upon successful deployment. In multi-version mode, no specific
version of the package is available for importing, unless you use
``pkg_resources.require()`` to put it on ``sys.path``, or you are running
a wrapper script generated by ``setuptools`` or EasyInstall. (In which
case the wrapper script calls ``require()`` for you.)
a wrapper script generated by ``setuptools``. (In which case the wrapper
script calls ``require()`` for you.)
Note that if you install to a directory other than ``site-packages``,
this option is automatically in effect, because ``.pth`` files can only be
......@@ -1887,25 +1814,6 @@ files), the ``develop`` command will use them as defaults, unless you override
them in a ``[develop]`` section or on the command line.
``easy_install`` - Find and install packages
============================================
This command runs the `EasyInstall tool
<easy_install.html>`_ for you. It is exactly
equivalent to running the ``easy_install`` command. All command line arguments
following this command are consumed and not processed further by the distutils,
so this must be the last command listed on the command line. Please see
the EasyInstall documentation for the options reference and usage examples.
Normally, there is no reason to use this command via the command line, as you
can just use ``easy_install`` directly. It's only listed here so that you know
it's a distutils command, which means that you can:
* create command aliases that use it,
* create distutils extensions that invoke it as a subcommand, and
* configure options for it in your ``setup.cfg`` or other distutils config
files.
.. _egg_info:
``egg_info`` - Create egg metadata and set build tags
......@@ -1964,9 +1872,9 @@ added in the following order:
(Note: Because these options modify the version number used for source and
binary distributions of your project, you should first make sure that you know
how the resulting version numbers will be interpreted by automated tools
like EasyInstall. See the section above on `Specifying Your Project's
Version`_ for an explanation of pre- and post-release tags, as well as tips on
how to choose and verify a versioning scheme for your your project.)
like pip. See the section above on `Specifying Your Project's Version`_ for an
explanation of pre- and post-release tags, as well as tips on how to choose and
verify a versioning scheme for your your project.)
For advanced uses, there is one other option that can be set, to change the
location of the project's ``.egg-info`` directory. Commands that need to find
......
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