mirror of
https://git.linuxfromscratch.org/lfs.git
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dd49ea7430
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11744 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
254 lines
7.8 KiB
XML
254 lines
7.8 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="ch-system-Python" role="wrap">
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<?dbhtml filename="Python.html"?>
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<sect1info condition="script">
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<productname>Python</productname>
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<productnumber>&python-version;</productnumber>
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<address>&python-url;</address>
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</sect1info>
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<title>Python-&python-version;</title>
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<indexterm zone="ch-system-Python">
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<primary sortas="a-python">python</primary>
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</indexterm>
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<sect2 role="package">
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<title/>
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<para>The Python 3 package contains the Python development environment. It
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is useful for object-oriented programming, writing scripts, prototyping
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large programs or developing entire applications.</para>
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<segmentedlist>
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<segtitle>&buildtime;</segtitle>
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<segtitle>&diskspace;</segtitle>
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<seglistitem>
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<seg>&python-ch6-sbu;</seg>
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<seg>&python-ch6-du;</seg>
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</seglistitem>
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</segmentedlist>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Python 3</title>
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<para>Prepare Python for compilation:</para>
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<screen><userinput remap="configure">./configure --prefix=/usr \
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--enable-shared \
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--with-system-expat \
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--with-system-ffi \
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--with-ensurepip=yes</userinput></screen>
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<variablelist>
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<title>The meaning of the configure options:</title>
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<varlistentry>
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<term><parameter>--with-system-expat</parameter></term>
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<listitem>
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<para>This switch enables linking against system version of
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<application>Expat</application>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--with-system-ffi</parameter></term>
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<listitem>
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<para>This switch enables linking against system version of
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<application>libffi</application>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--with-ensurepip=yes</parameter></term>
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<listitem>
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<para>This switch enables building <command>pip</command> and
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<command>setuptools</command> packaging programs.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>Compile the package:</para>
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<screen><userinput remap="make">make</userinput></screen>
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<para>To test the results, issue <command>make test</command>.
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Some tests requiring network connection or additional packages are
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skipped. The test named test_normalization fails because network
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configuration is not completed yet. For more comprehensive results,
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the test can be rerun when Python 3 is reinstalled in BLFS.</para>
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<para>Install the package:</para>
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<screen><userinput remap="install">make install
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chmod -v 755 /usr/lib/libpython&python-minor;.so
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chmod -v 755 /usr/lib/libpython3.so
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ln -sfv pip&python-minor; /usr/bin/pip3</userinput></screen>
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<variablelist>
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<title>The meaning of the install commands:</title>
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<!-- ====== Change 8m if Python minor version changes ======= -->
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<varlistentry>
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<term><command>chmod -v 755 /usr/lib/libpython3.{8.,}so</command></term>
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<listitem>
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<para>Fix permissions for libraries to be consistent with other
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libraries.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>If desired, install the preformatted documentation:</para>
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<screen><userinput remap="install">install -v -dm755 /usr/share/doc/python-&python-version;/html
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tar --strip-components=1 \
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--no-same-owner \
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--no-same-permissions \
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-C /usr/share/doc/python-&python-version;/html \
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-xvf ../python-&python-version;-docs-html.tar.bz2</userinput></screen>
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<variablelist>
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<title>The meaning of the documentation install commands:</title>
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<varlistentry>
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<term><option>--no-same-owner</option> and <option>--no-same-permissions</option></term>
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<listitem>
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<para>Ensure the installed files have the correct ownership and
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permissions. Without these options, using <application>tar</application>
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will install the package files with the upstream creator's values.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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<sect2 id="contents-python" role="content">
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<title>Contents of Python 3</title>
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<segmentedlist>
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<segtitle>Installed Programs</segtitle>
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<segtitle>Installed Library</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>
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2to3, idle3, pip3, pydoc3, python3, and python3-config
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</seg>
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<seg>
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libpython&python-minor;.so and libpython3.so
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</seg>
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<seg>
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/usr/include/python&python-minor;,
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/usr/lib/python3, and
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/usr/share/doc/python-&python-version;
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</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<?dbhtml list-presentation="table"?>
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<varlistentry id="python-2to3">
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<term><command>2to3</command></term>
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<listitem>
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<para>
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is a <application>Python</application> program that reads
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<application>Python 2.x</application> source code and applies a
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series of fixes to transform it into valid
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<application>Python 3.x</application> code.
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</para>
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<indexterm zone="ch-system-Python">
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<primary sortas="b-2to3">2to3</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="idle3">
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<term><command>idle3</command></term>
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<listitem>
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<para>
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is a wrapper script that opens a <application>Python</application>
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aware GUI editor. For this script to run, you must have installed
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<application>Tk</application> before Python so that the Tkinter
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Python module is built.
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</para>
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<indexterm zone="ch-system-Python">
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<primary sortas="b-idle3">idle3</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="pip3">
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<term><command>pip3</command></term>
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<listitem>
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<para>
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The package installer for Python. You can use pip to install
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packages from Python Package Index and other indexes.
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</para>
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<indexterm zone="ch-system-Python">
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<primary sortas="b-pip3">pip3</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="pydoc3">
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<term><command>pydoc3</command></term>
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<listitem>
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<para>
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is the <application>Python</application> documentation tool.
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</para>
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<indexterm zone="ch-system-Python">
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<primary sortas="b-pydoc3">pydoc3</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="python3">
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<term><command>python3</command></term>
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<listitem>
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<para>
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is an interpreted, interactive, object-oriented programming
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language.
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</para>
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<indexterm zone="ch-system-Python">
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<primary sortas="b-python3">python3</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<!--
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<varlistentry id="pyvenv">
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<term><command>pyvenv</command></term>
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<listitem>
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<para>
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creates virtual <application>Python</application> environments in
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one or more target directories.
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</para>
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<indexterm zone="ch-system-Python">
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<primary sortas="b-pyvenv">pyvenv</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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-->
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</variablelist>
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</sect2>
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</sect1>
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