[ab4fdfc] | 1 | <?xml version="1.0" encoding="UTF-8"?>
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[6732c094] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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[52d29f7] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[2cee003] | 7 | <!ENTITY python3-download-http
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[3f89ec5] | 8 | "https://www.python.org/ftp/python/&python3-version;/Python-&python3-version;.tar.xz">
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[355495ce] | 9 | <!ENTITY python3-download-ftp " ">
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[2c758f0] | 10 | <!ENTITY python3-md5sum "50f827c800483776c8ef86e6a53831fa">
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[7420ff72] | 11 | <!ENTITY python3-size "20 MB">
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[2c758f0] | 12 | <!ENTITY python3-buildsize "337 MB (add 56 MB for tests)">
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| 13 | <!ENTITY python3-time "2.4 SBU (add 6.0 SBU for tests; both using parallelism=4)">
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[e882fc37] | 14 | <!--
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[deaa200] | 15 | Note: Size does not reflect docs that were installed in LFS.
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[3df4c93] | 16 | -->
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[2cee003] | 17 | <!ENTITY python3htmldoc-download-http
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[1fe05eb] | 18 | "https://www.python.org/ftp/python/doc/&python3-version;/python-&python3-version;-docs-html.tar.bz2">
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[61a04db5] | 19 | <!ENTITY python3-docs-md5sum "d5c21b804c219b06256495eae30fd153" >
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[52d29f7] | 20 | ]>
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| 21 |
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[b88be39] | 22 | <sect1 id="python3" xreflabel="Python-&python3-version;">
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| 23 | <?dbhtml filename="python3.html" ?>
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[83f69e5d] | 24 |
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| 25 |
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[b88be39] | 26 | <title>Python-&python3-version;</title>
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[83f69e5d] | 27 |
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[b88be39] | 28 | <indexterm zone="python3">
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[03d30cf] | 29 | <primary sortas="a-Python3">Python3</primary>
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[83f69e5d] | 30 | </indexterm>
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| 31 |
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| 32 | <sect2 role="package">
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[03d30cf] | 33 | <title>Introduction to Python 3</title>
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[83f69e5d] | 34 |
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[355495ce] | 35 | <para>
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[03d30cf] | 36 | The <application>Python 3</application> package contains the
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[355495ce] | 37 | <application>Python</application> development environment.
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| 38 | This is useful for object-oriented programming, writing scripts,
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| 39 | prototyping large programs or developing entire applications.
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| 40 | </para>
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[48b816cb] | 41 |
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[de33b2a] | 42 | <note>
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| 43 | <para>
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| 44 | <application>Python 3</application> was installed in LFS.
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| 45 | The only reason to rebuild it here is if optional modules
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[b9a6bcc0] | 46 | are needed, or to upgrade this package.
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[de33b2a] | 47 | </para>
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| 48 | </note>
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[60ddbaf] | 49 |
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[a73fc762] | 50 | &lfs120_checked;
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[48b816cb] | 51 |
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[bd68243] | 52 | <important>
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| 53 | <para>
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| 54 | If upgrading to a new Python-3 minor version (for example,
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[7420ff72] | 55 | from Python-3.11.x to Python-3.12.0), you will need to reinstall
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[bd68243] | 56 | any Python3 modules you have installed. You should also
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| 57 | reinstall packages that generate Python3 modules
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[54d58907] | 58 | including
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[ea3ad858] | 59 | <xref linkend="gobject-introspection"/>,
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[8748122] | 60 | <xref linkend="libxml2"/>,
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[bd68243] | 61 | <xref linkend="opencv"/>,
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[bf09c25] | 62 | <xref linkend="graphviz"/> (if swig is installed).
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| 63 | </para>
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| 64 |
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[fb0bbe2] | 65 | <para>Before you upgrade, you can get a list of modules installed
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| 66 | with <command>pip3 list</command>. The list may be incomplete as
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| 67 | some Python modules are not installed with <command>pip3</command>,
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| 68 | for example the <literal>cracklib</literal> module installed by
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| 69 | <xref role='nodep' linkend='cracklib'/>. Use <command>ls
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| 70 | /usr/lib/python3.<replaceable>minor</replaceable>/site-packages</command>
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| 71 | for a comprehensive list.
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[bd68243] | 72 | </para>
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[ec288f7] | 73 |
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| 74 | <para>
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[fb0bbe2] | 75 | The Python modules from LFS will also have to be reinstalled:
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| 76 | <ulink url="&lfs-root;/chapter08/flit-core.html">flit-core</ulink>,
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[32c1b77] | 77 | <ulink url="&lfs-root;/chapter08/wheel.html">wheel</ulink>,
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[7420ff72] | 78 | <ulink url="&lfs-root;/chapter08/setuptools.html">setuptools</ulink>,
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[32c1b77] | 79 | <ulink url="&lfs-root;/chapter08/meson.html">meson</ulink>,
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| 80 | <ulink url="&lfs-root;/chapter08/markupsafe.html">MarkupSafe</ulink>,
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| 81 | and <ulink url="&lfs-root;/chapter08/jinja2.html">Jinja2</ulink>.
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[ec288f7] | 82 | </para>
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[bd68243] | 83 | </important>
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| 84 |
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[83f69e5d] | 85 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 86 | <itemizedlist spacing="compact">
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| 87 | <listitem>
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[355495ce] | 88 | <para>
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| 89 | Download (HTTP): <ulink url="&python3-download-http;"/>
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| 90 | </para>
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[83f69e5d] | 91 | </listitem>
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| 92 | <listitem>
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[355495ce] | 93 | <para>
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| 94 | Download (FTP): <ulink url="&python3-download-ftp;"/>
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| 95 | </para>
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[83f69e5d] | 96 | </listitem>
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| 97 | <listitem>
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[355495ce] | 98 | <para>
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| 99 | Download MD5 sum: &python3-md5sum;
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| 100 | </para>
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[83f69e5d] | 101 | </listitem>
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| 102 | <listitem>
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[355495ce] | 103 | <para>
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| 104 | Download size: &python3-size;
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| 105 | </para>
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[83f69e5d] | 106 | </listitem>
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| 107 | <listitem>
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[355495ce] | 108 | <para>
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| 109 | Estimated disk space required: &python3-buildsize;
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| 110 | </para>
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[83f69e5d] | 111 | </listitem>
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| 112 | <listitem>
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[355495ce] | 113 | <para>
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| 114 | Estimated build time: &python3-time;
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| 115 | </para>
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[83f69e5d] | 116 | </listitem>
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| 117 | </itemizedlist>
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[e882fc37] | 118 |
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[3df4c93] | 119 | <bridgehead renderas="sect3">Additional Optional Download</bridgehead>
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| 120 | <itemizedlist spacing="compact">
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| 121 | <listitem>
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| 122 | <para>
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| 123 | Download (HTTP): <ulink url="&python3htmldoc-download-http;"/>
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| 124 | </para>
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| 125 | </listitem>
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| 126 | <listitem>
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| 127 | <para>
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| 128 | Download MD5 sum: &python3-docs-md5sum;
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| 129 | </para>
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| 130 | </listitem>
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| 131 | </itemizedlist>
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| 132 |
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[03d30cf] | 133 | <bridgehead renderas="sect3">Python 3 Dependencies</bridgehead>
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[e882fc37] | 134 |
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[693f28e1] | 135 | <bridgehead renderas="sect4">Recommended</bridgehead>
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| 136 | <para role="recommended">
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[a82b5f44] | 137 | <xref linkend="sqlite"/> (required if building firefox or thunderbird)
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[693f28e1] | 138 | </para>
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| 139 |
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[83f69e5d] | 140 | <bridgehead renderas="sect4">Optional</bridgehead>
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[355495ce] | 141 | <para role="optional">
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[7fe0ce3b] | 142 | <xref linkend="bluez"/>,
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[e882fc37] | 143 | <xref linkend="gdb"/> (required for some tests),
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| 144 | <xref linkend="valgrind"/>, and
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[4e207bb] | 145 | <ulink url="https://www.bytereef.org/mpdecimal/">libmpdec</ulink>
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[355495ce] | 146 | </para>
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| 147 |
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| 148 | <bridgehead renderas="sect4">Optional (For Additional Modules)</bridgehead>
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| 149 | <para role="optional">
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[dcd5a063] | 150 | <xref linkend="libnsl"/>,
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| 151 | <xref linkend="tk"/>, and
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| 152 | &berkeley-db;
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[355495ce] | 153 | </para>
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[ce33273] | 154 |
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[42ddc30] | 155 | <para condition="html" role="usernotes">Editor Notes:
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[355495ce] | 156 | <ulink url="&blfs-wiki;/Python3"/>
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| 157 | </para>
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[83f69e5d] | 158 | </sect2>
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| 159 |
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| 160 | <sect2 role="installation">
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[03d30cf] | 161 | <title>Installation of Python 3</title>
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[83f69e5d] | 162 |
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[355495ce] | 163 | <para>
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[03d30cf] | 164 | Install <application>Python 3</application> by running the following
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[355495ce] | 165 | commands:
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| 166 | </para>
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[83f69e5d] | 167 |
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[a87fb41] | 168 | <screen><userinput>CXX="/usr/bin/g++" \
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| 169 | ./configure --prefix=/usr \
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| 170 | --enable-shared \
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| 171 | --with-system-expat \
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| 172 | --enable-optimizations &&
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[83f69e5d] | 173 | make</userinput></screen>
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| 174 |
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[355495ce] | 175 | <para>
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[382d0115] | 176 | <!-- I'm getting a test failure with empty $LANG:
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| 177 | "test test_curses failed"
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| 178 | "_curses.error: inswstr() returned ERR"
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[7420ff72] | 179 | not sure why, but let's just work around it with LC_ALL.
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| 180 |
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| 181 | For Python-3.12.0 all tests pass with only LANG=en_US.utf8.
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| 182 | Total tests: run=41,505 skipped=1,199
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| 183 | Total test files: run=477/483 skipped=12 resource_denied=6
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[61a04db5] | 184 |
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[2c758f0] | 185 | For Python-3.12.1 all tests pass
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| 186 | Total tests: run=40,624 skipped=1,136
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| 187 | Total test files: run=486/489 skipped=24 resource_denied=3
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| 188 |
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[7420ff72] | 189 | -->
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[382d0115] | 190 | To test the result, issue <command>LC_ALL=en_US.UTF-8
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| 191 | make test</command>.
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[7420ff72] | 192 | Some tests may need an Internet connection.
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[355495ce] | 193 | </para>
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| 194 |
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| 195 | <para>
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| 196 | Now, as the <systemitem class="username">root</systemitem> user:
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| 197 | </para>
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| 198 |
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[3df4c93] | 199 | <screen role="root"><userinput>make install</userinput></screen>
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| 200 |
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| 201 | <para>
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[1fe05eb] | 202 | If upgrading and the documentation has been downloaded, optionally install
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[3df4c93] | 203 | it as the &root; user:
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| 204 | </para>
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| 205 |
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[4be7bcd] | 206 | <screen role="root"><userinput>install -v -dm755 /usr/share/doc/python-&python3-version;/html
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| 207 |
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| 208 | tar --strip-components=1 \
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[3df4c93] | 209 | --no-same-owner \
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| 210 | --no-same-permissions \
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| 211 | -C /usr/share/doc/python-&python3-version;/html \
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| 212 | -xvf ../python-&python3-version;-docs-html.tar.bz2</userinput></screen>
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[1970f00] | 213 |
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[879d269] | 214 | </sect2>
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| 215 |
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| 216 | <sect2 role="commands">
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| 217 | <title>Command Explanations</title>
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| 218 |
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[fd69a62] | 219 | <para>
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| 220 | <command> CXX="/usr/bin/g++" ./configure ...</command>: Avoid an annoying
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| 221 | message during configuration.
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| 222 | </para>
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| 223 |
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[355495ce] | 224 | <para>
|
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[f1d7196] | 225 | <parameter>--with-system-expat</parameter>: This switch enables linking
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| 226 | against the system version of <application>Expat</application>.
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[355495ce] | 227 | </para>
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| 228 |
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[988edbf5] | 229 | <!--
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[fd69a62] | 230 | <para>
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[6e94284] | 231 | <parameter>- -with-ensurepip=yes</parameter> : This switch enables building
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[8558044] | 232 | the <command>pip</command> and <command>setuptools</command> packaging
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[229d0692] | 233 | programs. <command>setuptools</command> is needed for building some
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| 234 | Python modules.
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[fd69a62] | 235 | </para>
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[988edbf5] | 236 | -->
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[f1d7196] | 237 | <para>
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| 238 | <option>--with-dbmliborder=bdb:gdbm:ndbm</option>: Use this switch
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[229d0692] | 239 | if you want to build the <application>Python</application> DBM Module
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[f1d7196] | 240 | against <application>Berkeley DB</application> instead of
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| 241 | <application>GDBM</application>.
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| 242 | </para>
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| 243 |
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[7c57f82] | 244 | <para>
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[a0bb9145] | 245 | <parameter>--enable-optimizations</parameter>: This switch enables
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[a87fb41] | 246 | stable, but expensive, optimizations.
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[7c57f82] | 247 | </para>
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| 248 |
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| 249 | <para>
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| 250 | <option>--with-lto</option>: This optional switch enables thick Link
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| 251 | Time Optimization. Unusually, it creates a much larger <filename
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[4e207bb] | 252 | class="libraryfile">/usr/lib/python&python3-majorver;/config-&python3-majorver;-<arch>-linux-gnu/libpython&python3-majorver;.a</filename>
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[7c57f82] | 253 | with a small increase in the time to compile
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| 254 | <application>Python</application>. Run-time results do not appear to show
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| 255 | any benefit from doing this.
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| 256 | </para>
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[7224506] | 257 |
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[879d269] | 258 | </sect2>
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| 259 |
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| 260 | <sect2 role="configuration">
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[03d30cf] | 261 | <title>Configuring Python 3</title>
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[879d269] | 262 |
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[355495ce] | 263 | <para>
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[03d30cf] | 264 | In order for <command>python3</command> to find the installed
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[d7015e7] | 265 | documentation, create the following version independent symlink:
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[355495ce] | 266 | </para>
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[1970f00] | 267 |
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[d7015e7] | 268 | <screen role="root"><userinput>ln -svfn python-&python3-version; /usr/share/doc/python-3</userinput></screen>
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| 269 |
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| 270 | <para>
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| 271 | and add the following environment variable to the individual user's or
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| 272 | system's profile:
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| 273 | </para>
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| 274 |
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| 275 | <screen role="root"><userinput>export PYTHONDOCS=/usr/share/doc/python-3/html</userinput></screen>
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[83f69e5d] | 276 |
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| 277 | </sect2>
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| 278 |
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| 279 | <sect2 role="content">
|
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| 280 | <title>Contents</title>
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| 281 |
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| 282 | <segmentedlist>
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| 283 | <segtitle>Installed Programs</segtitle>
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| 284 | <segtitle>Installed Libraries</segtitle>
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| 285 | <segtitle>Installed Directories</segtitle>
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| 286 |
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| 287 | <seglistitem>
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[355495ce] | 288 | <seg>
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[f2ff0e4] | 289 | 2to3 (symlink) and
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[355495ce] | 290 | 2to3-&python3-majorver;,
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| 291 |
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[229d0692] | 292 | <!--
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[f2ff0e4] | 293 | easy_install-&python3-majorver;,
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[229d0692] | 294 | -->
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[f2ff0e4] | 295 |
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| 296 | idle3 (symlink) and
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| 297 | idle&python3-majorver;,
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[f5c5306] | 298 |
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[deaa200] | 299 | pip3 and
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[f2ff0e4] | 300 | pip&python3-majorver;,
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| 301 |
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[deaa200] | 302 | pydoc3 (symlink) and
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[355495ce] | 303 | pydoc&python3-majorver;,
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| 304 |
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[deaa200] | 305 | python3 (symlink) and
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[f2ff0e4] | 306 | python&python3-majorver;, and
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[355495ce] | 307 |
|
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[f2ff0e4] | 308 | python3-config (symlink) and
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| 309 | python&python3-majorver;-config
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[355495ce] | 310 | </seg>
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| 311 | <seg>
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[9e91b25] | 312 | libpython&python3-majorver;.so and libpython3.so
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[355495ce] | 313 | </seg>
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| 314 | <seg>
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[9e91b25] | 315 | /usr/include/python&python3-majorver;,
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[355495ce] | 316 | /usr/lib/python&python3-majorver;, and
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| 317 | /usr/share/doc/python-&python3-version;
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| 318 | </seg>
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[83f69e5d] | 319 | </seglistitem>
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| 320 | </segmentedlist>
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| 321 |
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| 322 | <variablelist>
|
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| 323 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
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| 324 | <?dbfo list-presentation="list"?>
|
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| 325 | <?dbhtml list-presentation="table"?>
|
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[f2ff0e4] | 326 | <!--
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| 327 | <varlistentry id="2to3">
|
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| 328 | <term><command>2to3</command></term>
|
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| 329 | <listitem>
|
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| 330 | <para>
|
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| 331 | is designed to assist in the transition between python2 and python3
|
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| 332 | by automatically converting code to be Python3 compatible.
|
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| 333 | </para>
|
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| 334 | <indexterm zone="python3 2to3">
|
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| 335 | <primary sortas="b-2to3">2to3</primary>
|
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| 336 | </indexterm>
|
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| 337 | </listitem>
|
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| 338 | </varlistentry>
|
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| 339 | Put here for easy use when removing Python2 -->
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[229d0692] | 340 | <!--
|
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[f2ff0e4] | 341 | <varlistentry id="easy_install">
|
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| 342 | <term><command>easy_install</command></term>
|
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| 343 | <listitem>
|
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| 344 | <para>
|
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| 345 | is a frontend to pip3 to make it easier to configure python modules
|
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[4c24eb0a] | 346 | through the PIP package manager
|
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[f2ff0e4] | 347 | </para>
|
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| 348 | <indexterm zone="python3 easy_install">
|
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| 349 | <primary sortas="python3 easy_install">easy_install</primary>
|
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| 350 | </indexterm>
|
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| 351 | </listitem>
|
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| 352 | </varlistentry>
|
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[229d0692] | 353 | -->
|
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[355495ce] | 354 | <varlistentry id="idle3">
|
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| 355 | <term><command>idle3</command></term>
|
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[83f69e5d] | 356 | <listitem>
|
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[355495ce] | 357 | <para>
|
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[d0aecd33] | 358 | is a wrapper script that opens a <application>Python</application>
|
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| 359 | aware GUI editor. For this script to run, you must have installed
|
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| 360 | <application>Tk</application> before Python so that the Tkinter
|
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[4c24eb0a] | 361 | Python module is built
|
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[355495ce] | 362 | </para>
|
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| 363 | <indexterm zone="python3 idle3">
|
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| 364 | <primary sortas="b-idle3">idle3</primary>
|
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[83f69e5d] | 365 | </indexterm>
|
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| 366 | </listitem>
|
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| 367 | </varlistentry>
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| 368 |
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[355495ce] | 369 | <varlistentry id="pydoc3">
|
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| 370 | <term><command>pydoc3</command></term>
|
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[83f69e5d] | 371 | <listitem>
|
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[355495ce] | 372 | <para>
|
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| 373 | is the <application>Python</application> documentation
|
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[4c24eb0a] | 374 | tool
|
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[355495ce] | 375 | </para>
|
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| 376 | <indexterm zone="python3 pydoc3">
|
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| 377 | <primary sortas="b-pydoc3">pydo3c</primary>
|
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[83f69e5d] | 378 | </indexterm>
|
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| 379 | </listitem>
|
---|
| 380 | </varlistentry>
|
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| 381 |
|
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[b88be39] | 382 | <varlistentry id="python3-prog">
|
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[2cee003] | 383 | <term><command>python3</command></term>
|
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[83f69e5d] | 384 | <listitem>
|
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[355495ce] | 385 | <para>
|
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| 386 | is an interpreted, interactive, object-oriented programming
|
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[4c24eb0a] | 387 | language
|
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[355495ce] | 388 | </para>
|
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[b88be39] | 389 | <indexterm zone="python3 python3-prog">
|
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| 390 | <primary sortas="b-python3">python3</primary>
|
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[83f69e5d] | 391 | </indexterm>
|
---|
| 392 | </listitem>
|
---|
| 393 | </varlistentry>
|
---|
| 394 |
|
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[f67f5387] | 395 | <varlistentry id="python-ver">
|
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[b88be39] | 396 | <term><command>python&python3-majorver;</command></term>
|
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[83f69e5d] | 397 | <listitem>
|
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[355495ce] | 398 | <para>
|
---|
| 399 | is a version-specific name for the <command>python</command>
|
---|
[4c24eb0a] | 400 | program
|
---|
[355495ce] | 401 | </para>
|
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[b88be39] | 402 | <indexterm zone="python3 python-ver">
|
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[4c24eb0a] | 403 | <primary sortas="b-python&python3-majorver;">python&python3-majorver;</primary>
|
---|
[83f69e5d] | 404 | </indexterm>
|
---|
| 405 | </listitem>
|
---|
| 406 | </varlistentry>
|
---|
[f2ff0e4] | 407 | <!--
|
---|
[21e8edc] | 408 | <varlistentry id="pyvenv">
|
---|
| 409 | <term><command>pyvenv</command></term>
|
---|
| 410 | <listitem>
|
---|
| 411 | <para>
|
---|
| 412 | creates virtual <application>Python</application> environments in
|
---|
| 413 | one or more target directories.
|
---|
| 414 | </para>
|
---|
| 415 | <indexterm zone="python3 pyvenv">
|
---|
| 416 | <primary
|
---|
| 417 | sortas="b-python&python3-majorver;">python&python3-majorver;</primary>
|
---|
| 418 | </indexterm>
|
---|
| 419 | </listitem>
|
---|
| 420 | </varlistentry>
|
---|
[f2ff0e4] | 421 | -->
|
---|
[83f69e5d] | 422 | </variablelist>
|
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| 423 |
|
---|
| 424 | </sect2>
|
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[f45b1953] | 425 |
|
---|
| 426 | </sect1>
|
---|