glfs/general/prog/python3.xml
Bruce Dubbs b548e98d4a Update to ruby-2.5.1.
Update to python3-3.6.5. 
Update to cmake-3.11.0. 
Update to node.js-9.10.1. 



git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@20026 af4574ff-66df-0310-9fd7-8a98e5e911e0
2018-03-31 22:12:39 +00:00

352 lines
11 KiB
XML

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../../general.ent">
%general-entities;
<!ENTITY python3-download-http
"https://www.python.org/ftp/python/&python3-version;/Python-&python3-version;.tar.xz">
<!ENTITY python3-download-ftp " ">
<!ENTITY python3-md5sum "9f49654a4d6f733ff3284ab9d227e9fd">
<!ENTITY python3-size "16 MB">
<!ENTITY python3-buildsize "159 MB (add 29 MB for tests)">
<!ENTITY python3-time "0.6 SBU (using parallelism=4; add 1.7 SBU for tests)">
<!ENTITY python3htmldoc-download-http
"https://docs.python.org/ftp/python/doc/&python3-version;/python-&python3-version;-docs-html.tar.bz2">
]>
<sect1 id="python3" xreflabel="Python-&python3-version;">
<?dbhtml filename="python3.html" ?>
<sect1info>
<othername>$LastChangedBy$</othername>
<date>$Date$</date>
</sect1info>
<title>Python-&python3-version;</title>
<indexterm zone="python3">
<primary sortas="a-Python3">Python3</primary>
</indexterm>
<sect2 role="package">
<title>Introduction to Python 3</title>
<para>
The <application>Python 3</application> package contains the
<application>Python</application> development environment.
This is useful for object-oriented programming, writing scripts,
prototyping large programs or developing entire applications.
</para>
<note><para><application>Python 3</application> was installed in LFS.
The only reason to rebuild it here is if optional modules
are needed.</para></note>
&lfs82_checked;
<bridgehead renderas="sect3">Package Information</bridgehead>
<itemizedlist spacing="compact">
<listitem>
<para>
Download (HTTP): <ulink url="&python3-download-http;"/>
</para>
</listitem>
<listitem>
<para>
Download (FTP): <ulink url="&python3-download-ftp;"/>
</para>
</listitem>
<listitem>
<para>
Download MD5 sum: &python3-md5sum;
</para>
</listitem>
<listitem>
<para>
Download size: &python3-size;
</para>
</listitem>
<listitem>
<para>
Estimated disk space required: &python3-buildsize;
</para>
</listitem>
<listitem>
<para>
Estimated build time: &python3-time;
</para>
</listitem>
</itemizedlist>
<!--
<bridgehead renderas="sect3">Additional Downloads</bridgehead>
<itemizedlist spacing="compact">
<title>Optional HTML Documentation</title>
<listitem>
<para>
Download (HTTP): <ulink url="&python3htmldoc-download-http;"/>
</para>
</listitem>
</itemizedlist>
-->
<bridgehead renderas="sect3">Python 3 Dependencies</bridgehead>
<!--
<bridgehead renderas="sect4">Recommended</bridgehead>
<para role="recommended">
<xref linkend="libffi"/>
</para>
-->
<bridgehead renderas="sect4">Optional</bridgehead>
<para role="optional">
<xref linkend="bluez"/>,
<xref linkend="gdb"/> (required for some tests), and
<xref linkend="valgrind"/>
</para>
<bridgehead renderas="sect4">Optional (For Additional Modules)</bridgehead>
<para role="optional">
<xref linkend="db"/> and
<xref linkend="sqlite"/>
</para>
<para condition="html" role="usernotes">User Notes:
<ulink url="&blfs-wiki;/Python3"/>
</para>
</sect2>
<sect2 role="installation">
<title>Installation of Python 3</title>
<para>
Install <application>Python 3</application> by running the following
commands:
</para>
<screen><userinput>CXX="/usr/bin/g++" \
./configure --prefix=/usr \
--enable-shared \
--with-system-expat \
--with-system-ffi \
--with-ensurepip=yes &amp;&amp;
make</userinput></screen>
<para>
The test suite must be run separately, using an X terminal (see below).
</para>
<para>
Now, as the <systemitem class="username">root</systemitem> user:
</para>
<screen role="root"><userinput>make install &amp;&amp;
chmod -v 755 /usr/lib/libpython&python3-majorver;m.so &amp;&amp;
chmod -v 755 /usr/lib/libpython3.so</userinput></screen>
<!--
<para>
If you have downloaded the preformatted documentation from
<ulink url="http://docs.python.org/download.html"/>, install it
as the <systemitem class="username">root</systemitem> user:
</para>
<screen role="root"><userinput>install -v -dm755 /usr/share/doc/python-&python3-version;/html &amp;&amp;
tar - -strip-components=1 \
- -no-same-owner \
- -no-same-permissions \
-C /usr/share/doc/python-&python3-version;/html \
-xvf ../python-&python3-version;-docs-html.tar.bz2</userinput></screen>
-->
<para>
The test suite must be run separately from the build, either before or
after the package is built and installed. Do not run
<command>make install</command> after running the test suite. To build
and install the package, you need to start with a fresh or clean source
tree. For the test, you also need a clean source code, so either start by
removing the source code directory and starting over, by uncompressing
the source tarball or by running <command>make clean</command>. Then
configure again, adding <quote>--with-pydebug</quote> to the
<command>configure</command> switches above, run <command>make</command>,
then <command>make test</command>. Remember that tests must be executed
using an X terminal. One test fails. The test SBU highly depends on the
speed of the internet connection.
</para>
</sect2>
<sect2 role="commands">
<title>Command Explanations</title>
<para>
<command> CXX="/usr/bin/g++" ./configure ...</command>: Avoid an annoying
message during configuration.
</para>
<para>
<parameter>--with-system-expat</parameter>: This switch enables linking
against the system version of <application>Expat</application>.
</para>
<para>
<parameter>--with-system-ffi</parameter>: This switch enables linking
against system version of <application>libffi</application>.
</para>
<para>
<parameter>--with-ensurepip=yes</parameter> : This switch enables building
<command>pip</command> and <command>setuptools</command> packaging programs.
<command>setuptools</command> is needed for building some Python modules.
</para>
<para>
<option>--with-dbmliborder=bdb:gdbm:ndbm</option>: Use this switch
if you want to build <application>Python</application> DBM Module
against <application>Berkeley DB</application> instead of
<application>GDBM</application>.
</para>
<para>
<command>chmod ...</command>: Fix permissions for shared libraries to be
consistent with other libraries.
</para>
</sect2>
<sect2 role="configuration">
<title>Configuring Python 3</title>
<para>
In order for <command>python3</command> to find the installed
documentation, create the following version independent symlink:
</para>
<screen role="root"><userinput>ln -svfn python-&python3-version; /usr/share/doc/python-3</userinput></screen>
<para>
and add the following environment variable to the individual user's or
system's profile:
</para>
<screen role="root"><userinput>export PYTHONDOCS=/usr/share/doc/python-3/html</userinput></screen>
</sect2>
<sect2 role="content">
<title>Contents</title>
<segmentedlist>
<segtitle>Installed Programs</segtitle>
<segtitle>Installed Libraries</segtitle>
<segtitle>Installed Directories</segtitle>
<seglistitem>
<seg>
2to3 (symlink),
2to3-&python3-majorver;,
idle3 (symlink), and
idle&python3-majorver;
pydoc3 (symlink),
pydoc&python3-majorver;,
python3 (symlink);
python&python3-majorver; and python&python3-majorver;m (hardlinked);
python3-config (symlink),
python&python3-majorver;-config (symlink),
python&python3-majorver;m-config,
pyvenv (symlink),
pyvenv-&python3-majorver;,
</seg>
<seg>
libpython&python3-majorver;m.so and libpython3.so
</seg>
<seg>
/usr/include/python&python3-majorver;m,
/usr/lib/python&python3-majorver;, and
/usr/share/doc/python-&python3-version;
</seg>
</seglistitem>
</segmentedlist>
<variablelist>
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>
<varlistentry id="idle3">
<term><command>idle3</command></term>
<listitem>
<para>
is a wrapper script that opens a <application>Python</application>
aware GUI editor. For this script to run, you must have installed
<application>Tk</application> before Python so that the Tkinter
Python module is built.
</para>
<indexterm zone="python3 idle3">
<primary sortas="b-idle3">idle3</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="pydoc3">
<term><command>pydoc3</command></term>
<listitem>
<para>
is the <application>Python</application> documentation
tool.
</para>
<indexterm zone="python3 pydoc3">
<primary sortas="b-pydoc3">pydo3c</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="python3-prog">
<term><command>python3</command></term>
<listitem>
<para>
is an interpreted, interactive, object-oriented programming
language.
</para>
<indexterm zone="python3 python3-prog">
<primary sortas="b-python3">python3</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="python-ver">
<term><command>python&python3-majorver;</command></term>
<listitem>
<para>
is a version-specific name for the <command>python</command>
program.
</para>
<indexterm zone="python3 python-ver">
<primary
sortas="b-python&python3-majorver;">python&python3-majorver;</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="pyvenv">
<term><command>pyvenv</command></term>
<listitem>
<para>
creates virtual <application>Python</application> environments in
one or more target directories.
</para>
<indexterm zone="python3 pyvenv">
<primary
sortas="b-python&python3-majorver;">python&python3-majorver;</primary>
</indexterm>
</listitem>
</varlistentry>
</variablelist>
</sect2>
</sect1>