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+<?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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+
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+<sect1 id="ch-system-Python" role="wrap">
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+ <?dbhtml filename="Python.html"?>
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+
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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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+
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+ <title>Python-&python-version;</title>
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+
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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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+
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+ <sect2 role="package">
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+ <title/>
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+
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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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+
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+ <segmentedlist>
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+ <segtitle>&buildtime;</segtitle>
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+ <segtitle>&diskspace;</segtitle>
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+
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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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+
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+ </sect2>
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+
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+ <sect2 role="installation">
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+ <title>Installation of Python 3</title>
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+
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+ <para>Prepare Python for compilation:</para>
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+
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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 \
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+ --enable-unicode=ucs4</userinput></screen>
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+
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+ <variablelist>
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+ <title>The meaning of the configure options:</title>
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+
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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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+
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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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+
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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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+
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+ <varlistentry>
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+ <term><parameter>--enable-unicode=ucs4</parameter></term>
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+ <listitem>
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+ <para>This switch enables 32bit Unicode support in
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+ <application>Python</application>.</para>
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+ </listitem>
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+ </varlistentry>
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+
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+ </variablelist>
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+
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+ <para>Compile the package:</para>
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+
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+<screen><userinput remap="make">make</userinput></screen>
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+
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+ <para>The test suite requires TK and and X Windows session and cannot
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+ be run until Python 3 is reinstalled in BLFS.</para>
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+
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+ <para>Install the package:</para>
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+
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+<screen><userinput remap="install">make install
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+chmod -v 755 /usr/lib/libpython3.6m.so
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+chmod -v 755 /usr/lib/libpython3.so</userinput></screen>
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+
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+ <variablelist>
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+ <title>The meaning of the install commands:</title>
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+
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+ <varlistentry>
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+ <term><command>chmod -v 755 /usr/lib/libpython3.{6m.,}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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+
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+ </variablelist>
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+
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+ <para>If desired, install the preformatted documentation:</para>
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+
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+<screen><userinput remap="install">install -v -dm755 /usr/share/doc/python-&python-version;/html
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+
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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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+
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+ <variablelist>
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+ <title>The meaning of the documentation install commands:</title>
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+
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+ <varlistentry>
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+ <term><option>--no-same-owner</option> and --no-same-permissions</term>
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+ <listitem>
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+ <para>Ensure the installed files have the correct ownership and
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+ prermissions. 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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+
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+ </variablelist>
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+
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+ </sect2>
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+
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+ <sect2 id="contents-python" role="content">
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+ <title>Contents of Python 3</title>
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+
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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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+
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+ <seglistitem>
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+ <seg>
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+ 2to3, idle3, pydoc3, python3, python3-config, pyvenv
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+ </seg>
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+ <seg>
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+ libpython3.6m.so and libpython3.so
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+ </seg>
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+ <seg>
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+ /usr/include/python3.6m, /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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+ </sect2>
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+
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+</sect1>
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+
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