glfs/general/prog/python2.xml
Bruce Dubbs 714b5e4c98 Update to wget-1.19.5.
Update to python2-2.7.15. 
Update to sudo-1.8.23. 



git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@20133 af4574ff-66df-0310-9fd7-8a98e5e911e0
2018-05-11 21:28:23 +00:00

349 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 python2-download-http
"https://www.python.org/ftp/python/&python2-version;/Python-&python2-version;.tar.xz">
<!ENTITY python2-download-ftp " ">
<!ENTITY python2-md5sum "a80ae3cc478460b922242f43a1b4094d">
<!ENTITY python2-size "12 MB">
<!ENTITY python2-buildsize "127 MB (additional 15 MB for tests)">
<!ENTITY python2-time "0.9 SBU (additional 6.6 SBU for tests)">
<!ENTITY python2htmldoc-download-http
"https://docs.python.org/ftp/python/doc/&python2-version;/python-&python2-version;-docs-html.tar.bz2">
]>
<sect1 id="python2" xreflabel="Python-&python2-version;">
<?dbhtml filename="python2.html" ?>
<sect1info>
<othername>$LastChangedBy$</othername>
<date>$Date$</date>
</sect1info>
<title>Python-&python2-version;</title>
<indexterm zone="python2">
<primary sortas="a-Python2">Python2</primary>
</indexterm>
<sect2 role="package">
<title>Introduction to Python 2</title>
<para>
The <application>Python 2</application> package contains the
<application>Python</application> development environment. It is useful
for object-oriented programming, writing scripts, prototyping large
programs or developing entire applications. This version is for backward
compatibility with other dependent packages.
</para>
&lfs82_checked;
<bridgehead renderas="sect3">Package Information</bridgehead>
<itemizedlist spacing="compact">
<listitem>
<para>
Download (HTTP): <ulink url="&python2-download-http;"/>
</para>
</listitem>
<listitem>
<para>
Download (FTP): <ulink url="&python2-download-ftp;"/>
</para>
</listitem>
<listitem>
<para>
Download MD5 sum: &python2-md5sum;
</para>
</listitem>
<listitem>
<para>
Download size: &python2-size;
</para>
</listitem>
<listitem>
<para>
Estimated disk space required: &python2-buildsize;
</para>
</listitem>
<listitem>
<para>
Estimated build time: &python2-time;
</para>
</listitem>
</itemizedlist>
<bridgehead renderas="sect3">Additional Downloads</bridgehead>
<itemizedlist spacing="compact">
<title>Optional HTML Documentation</title>
<listitem>
<para>
Download (HTTP): <ulink url="&python2htmldoc-download-http;"/>
</para>
</listitem>
</itemizedlist>
<bridgehead renderas="sect3">Python 2 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"/> and
<xref linkend="valgrind"/>
</para>
<bridgehead renderas="sect4">Optional (For Additional Modules)</bridgehead>
<para role="optional">
<xref linkend="sqlite"/> and
<xref linkend="tk"/>
</para>
<!--
<note>
<para>
If you are building <xref linkend="thunderbird"/> or
<xref linkend="firefox"/>
you must install <application>openssl</application> before you build
<application>Python 2</application>.
</para>
</note>
-->
<para condition="html" role="usernotes">
User Notes: <ulink url="&blfs-wiki;/Python"/>
</para>
</sect2>
<sect2 role="installation">
<title>Installation of Python 2</title>
<para>
Install <application>Python 2</application> by running the following
commands:
</para>
<note><para>To build the python _ssl module, the file Modules/Setup.dist
must be edited.
<screen><userinput>sed -i '/#SSL/,+3 s/^#//' Modules/Setup.dist</userinput></screen>
</para></note>
<screen><userinput>./configure --prefix=/usr \
--enable-shared \
--with-system-expat \
--with-system-ffi \
--with-ensurepip=yes \
--enable-unicode=ucs4 &amp;&amp;
make</userinput></screen>
<para>
To test the results, issue: <command>make -k test</command>.
One test fails for unknown reasons.
</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&python2-majorver;.so.1.0</userinput></screen>
<para>
Since <application>Python 2</application> is in maintenance mode, and
<application>Python 3</application> is recommended by upstream for
development, you probably do not need to install the documentation.
However, if you still want to install documentation for both
<application>Python</application> versions, be sure to define the
<envar>PYTHONDOCS</envar>
variable for the version you want to use, each time you need to consult
the documentation. 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-&python2-version; &amp;&amp;
tar --strip-components=1 \
--no-same-owner \
--directory /usr/share/doc/python-&python2-version; \
-xvf ../python-&python2-version;-docs-html.tar.bz2 &amp;&amp;
find /usr/share/doc/python-&python2-version; -type d -exec chmod 0755 {} \; &amp;&amp;
find /usr/share/doc/python-&python2-version; -type f -exec chmod 0644 {} \;</userinput></screen>
</sect2>
<sect2 role="commands">
<title>Command Explanations</title>
<para>
<parameter>--with-system-expat</parameter>: This switch enables linking
against 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>
<parameter>--enable-unicode=ucs4</parameter>: This switch enables
32bit Unicode support in <application>Python</application>.
</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 libraries to be
consistent with other libraries.
</para>
</sect2>
<sect2 role="configuration">
<title>Configuring Python 2</title>
<para>
In order for <command>python</command> to find the installed
documentation, you must add the following environment variable to
individual user's or the system's profile:
</para>
<screen role="root"><userinput>export PYTHONDOCS=/usr/share/doc/python-&python2-version;</userinput></screen>
</sect2>
<sect2 role="content">
<title>Contents</title>
<segmentedlist>
<segtitle>Installed Programs</segtitle>
<segtitle>Installed Library</segtitle>
<segtitle>Installed Directories</segtitle>
<seglistitem>
<seg>
2to3, pydoc, python (symlink), python-config (symlink),
python2 (symlink), python2-config (symlink),
python&python2-majorver;, python&python2-majorver;-config,
smtpd.py, and idle
</seg>
<seg>
libpython&python2-majorver;.so
</seg>
<seg>
/usr/{include,lib}/python&python2-majorver; and
/usr/share/doc/python-&python2-version;
</seg>
</seglistitem>
</segmentedlist>
<variablelist>
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>
<varlistentry id="python2-2to3">
<term><command>2to3</command></term>
<listitem>
<para>
is a <application>Python</application> program that reads
<application>Python 2.x</application> source code and applies a
series of fixes to transform it into valid
<application>Python 3.x</application> code.
</para>
<indexterm zone="python2 python2-2to3">
<primary sortas="b-2to3">2to3</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="idle">
<term><command>idle</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="python2 idle">
<primary sortas="b-idle">idle</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="pydoc2">
<term><command>pydoc</command></term>
<listitem>
<para>
is the <application>Python</application> documentation tool.
</para>
<indexterm zone="python2 pydoc2">
<primary sortas="b-pydoc2">pydoc</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="python">
<term><command>python</command></term>
<listitem>
<para>
is an interpreted, interactive, object-oriented programming
language.
</para>
<indexterm zone="python2 python">
<primary sortas="b-python2">python</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="python2-ver">
<term><command>python&python2-majorver;</command></term>
<listitem>
<para>
is a version-specific name for the <command>python</command>
program.
</para>
<indexterm zone="python2 python2-ver">
<primary sortas="b-python&python2-majorver;">python&python2-majorver;</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="smtpd.py">
<term><command>smtpd.py</command></term>
<listitem>
<para>
is an SMTP proxy implemented in <application>Python</application>.
</para>
<indexterm zone="python2 smtpd.py">
<primary sortas="b-smtpd.py">smtpd.py</primary>
</indexterm>
</listitem>
</varlistentry>
</variablelist>
</sect2>
</sect1>