1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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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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4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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5 | %general-entities;
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6 |
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7 | <!ENTITY python2-download-http
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8 | "http://www.python.org/ftp/python/&python2-version;/Python-&python2-version;.tar.xz">
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9 | <!ENTITY python2-download-ftp " ">
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10 | <!-- <!ENTITY python2-download-ftp "&gentoo-ftp-repo;/Python-&python2-version;.tar.xz"> -->
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11 | <!ENTITY python2-md5sum "62c4c1699170078c469f79ddfed21bc0">
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12 | <!ENTITY python2-size "9.6 MB">
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13 | <!ENTITY python2-buildsize "235 MB (not including the test suite)">
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14 | <!ENTITY python2-time "1.1 SBU (not including the test suite)">
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15 | <!ENTITY python2htmldoc-download-http
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16 | "http://docs.python.org/ftp/python/doc/&python2-version;/python-&python2-version;-docs-html.tar.bz2">
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17 | <!ENTITY python2htmldoc-md5sum "101c13d39f76fd6706aac3a9196b2f01">
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18 | <!ENTITY python2htmldoc-size "4.2 MB">
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19 | ]>
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20 |
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21 | <sect1 id="python2" xreflabel="Python-&python2-version;">
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22 | <?dbhtml filename="python2.html" ?>
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23 |
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24 | <sect1info>
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25 | <othername>$LastChangedBy$</othername>
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26 | <date>$Date$</date>
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27 | </sect1info>
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28 |
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29 | <title>Python-&python2-version;</title>
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30 |
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31 | <indexterm zone="python2">
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32 | <primary sortas="a-Python2">Python</primary>
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33 | </indexterm>
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34 |
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35 | <sect2 role="package">
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36 | <title>Introduction to Python 2</title>
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37 |
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38 | <para>
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39 | The <application>Python 2</application> package contains the
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40 | <application>Python</application> development environment. This is useful
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41 | for object-oriented programming, writing scripts, prototyping large
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42 | programs or developing entire applications. This version is for backward
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43 | compatibility with other dependent packages.
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44 | </para>
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45 |
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46 | &lfs71_checked;
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47 |
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48 | <bridgehead renderas="sect3">Package Information</bridgehead>
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49 | <itemizedlist spacing="compact">
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50 | <listitem>
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51 | <para>
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52 | Download (HTTP): <ulink url="&python2-download-http;"/>
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53 | </para>
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54 | </listitem>
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55 | <listitem>
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56 | <para>
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57 | Download (FTP): <ulink url="&python2-download-ftp;"/>
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58 | </para>
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59 | </listitem>
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60 | <listitem>
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61 | <para>
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62 | Download MD5 sum: &python2-md5sum;
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63 | </para>
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64 | </listitem>
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65 | <listitem>
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66 | <para>
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67 | Download size: &python2-size;
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68 | </para>
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69 | </listitem>
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70 | <listitem>
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71 | <para>
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72 | Estimated disk space required: &python2-buildsize;
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73 | </para>
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74 | </listitem>
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75 | <listitem>
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76 | <para>
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77 | Estimated build time: &python2-time;
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78 | </para>
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79 | </listitem>
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80 | </itemizedlist>
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81 |
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82 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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83 |
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84 | <itemizedlist spacing="compact">
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85 | <title>Optional HTML Documentation</title>
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86 | <listitem>
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87 | <para>
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88 | Download (HTTP): <ulink url="&python2htmldoc-download-http;"/>
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89 | </para>
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90 | </listitem>
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91 | <listitem>
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92 | <para>
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93 | Download MD5 sum: &python2htmldoc-md5sum;
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94 | </para>
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95 | </listitem>
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96 | <listitem>
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97 | <para>
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98 | Download size: &python2htmldoc-size;
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99 | </para>
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100 | </listitem>
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101 | </itemizedlist>
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102 |
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103 | <bridgehead renderas="sect3">Python Dependencies</bridgehead>
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104 |
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105 | <bridgehead renderas="sect4">Optional</bridgehead>
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106 | <para role="optional">
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107 | <!-- <xref linkend="pth"/> can only be used if you've overwritten glibc's
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108 | libpthread. -->
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109 | <xref linkend="libffi"/> and <xref linkend="pkgconfig"/>
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110 | (<command>configure</command> uses <command>pkgconfig</command> to find
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111 | <application>libffi</application>. There is a circular dependency here:
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112 | <application>Pkgconfig</application> requires
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113 | <application>Glib</application> which requires
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114 | <application>Python 2</application>),
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115 | <!-- gcc's libffi does not install a pkgconfig file -->
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116 | <ulink url="http://sphinx.pocoo.org/">Sphinx</ulink> (to create the docs),
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117 | <ulink url="http://www.bluez.org/">BlueZ</ulink>,
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118 | <xref linkend="openssl"/>,
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119 | <xref linkend="tk"/> (there is a circular dependency with the
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120 | <application>Tk</application> package as it requires Xorg to be installed
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121 | but parts of Xorg depend on <application>Python</application>),
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122 | <!--<xref linkend="db"/> and-->
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123 | <ulink
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124 | url="http://www.oracle.com/technetwork/products/berkeleydb/downloads/">BerkeleyDB</ulink>
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125 | (only versions up to 4.8), and
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126 | <xref linkend="sqlite"/>.
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127 | </para>
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128 |
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129 | <para condition="html" role="usernotes">
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130 | User Notes: <ulink url="&blfs-wiki;/Python"/>
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131 | </para>
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132 | </sect2>
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133 |
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134 | <sect2 role="installation">
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135 | <title>Installation of Python</title>
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136 |
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137 | <para>
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138 | Install <application>Python</application> by running the following
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139 | commands:
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140 | </para>
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141 |
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142 | <screen><userinput>sed -i "s/ndbm_libs = \[\]/ndbm_libs = ['gdbm', 'gdbm_compat']/" setup.py &&
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143 | ./configure --prefix=/usr --enable-shared &&
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144 | make</userinput></screen>
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145 |
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146 | <para>
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147 | To test the results, issue: <command>make test</command>.
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148 | </para>
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149 |
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150 | <para>
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151 | In order to use the <command>help ('name_string')</command> feature of the
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152 | <command>python</command> interpreter with some statements and keywords,
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153 | you must create or download the optional HTML documentation.
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154 | </para>
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155 |
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156 | <para>
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157 | If you have installed <ulink url="http://sphinx.pocoo.org/">Sphinx</ulink>
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158 | and wish to create the HTML documentation:
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159 | </para>
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160 |
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161 | <screen><userinput>make -C Doc html</userinput></screen>
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162 |
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163 | <para>
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164 | Now, as the <systemitem class="username">root</systemitem> user:
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165 | </para>
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166 |
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167 | <screen role="root"><userinput>make install &&
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168 | chmod -v 755 /usr/lib/libpython&python2-majorver;.so.1.0</userinput></screen>
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169 |
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170 | <para>
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171 | If you created the html documentation with
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172 | <application>Sphinx</application> then install it as the
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173 | <systemitem class="username">root</systemitem> user:
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174 | </para>
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175 |
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176 | <screen role="root"><userinput>install -v -m755 -d /usr/share/doc/Python-&python2-version; &&
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177 | cp -rfv Doc/build/html/* /usr/share/doc/python-&python2-version;</userinput></screen>
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178 |
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179 | <para>
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180 | Alternatively, you can download preformatted documentation from
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181 | <ulink url="http://docs.python.org/download.html"/> and install it as the
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182 | <systemitem class="username">root</systemitem> user:
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183 | </para>
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184 |
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185 | <screen role="root"><userinput>install -v -m755 -d /usr/share/doc/Python-&python2-version; &&
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186 | tar --strip-components=1 -C /usr/share/doc/Python-&python2-version; \
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187 | -xvf ../python-&python2-version;-docs-html.tar.bz2</userinput></screen>
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188 | </sect2>
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189 |
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190 | <sect2 role="commands">
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191 | <title>Command Explanations</title>
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192 |
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193 | <para>
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194 | <option>--with-system-ffi</option>: If you have installed
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195 | <application>Libffi</application> and
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196 | <application>Pkgconfig</application>, add this option to compile
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197 | <application>Python</application>'s _ctypes module using the system
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198 | installed <application>Libffi</application>. Otherwise
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199 | <application>Python</application> will compile its own copy of
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200 | <application>Libffi</application>.
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201 | </para>
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202 |
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203 | <para>
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204 | <command>sed -i "s/ndbm_libs = ..." setup.py</command>: This command is
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205 | used to fix a build problem with the <application>GDBM</application>
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206 | library.
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207 | </para>
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208 |
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209 | <para>
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210 | <command>chmod ...</command>: Fix permissions for libraries to be
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211 | consistent with other libraries.
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212 | </para>
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213 | </sect2>
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214 |
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215 | <sect2 role="configuration">
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216 | <title>Configuring Python 2</title>
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217 |
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218 | <para>
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219 | In order for <command>python</command> to find the installed
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220 | documentation, you must add the following environment variable to
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221 | individual user's or the system's profile:
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222 | </para>
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223 |
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224 | <screen role="root"><userinput>export PYTHONDOCS=/usr/share/doc/Python-&python2-version;</userinput></screen>
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225 | </sect2>
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226 |
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227 | <sect2 role="content">
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228 | <title>Contents</title>
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229 |
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230 | <segmentedlist>
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231 | <segtitle>Installed Programs</segtitle>
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232 | <segtitle>Installed Libraries</segtitle>
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233 | <segtitle>Installed Directories</segtitle>
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234 |
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235 | <seglistitem>
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236 | <seg>
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237 | 2to3, pydoc, python, python-config, python&python2-majorver;,
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238 | python&python2-majorver;-config, smtpd.py, and optionally if
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239 | <application>Tk</application> is installed, idle
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240 | </seg>
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241 | <seg>
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242 | libpython&python2-majorver;.so and numerous modules installed in
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243 | /usr/lib/python&python2-majorver;/lib-dynload
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244 | </seg>
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245 | <seg>
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246 | /usr/include/python&python2-majorver;,
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247 | /usr/lib/python&python2-majorver;, and
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248 | /usr/share/doc/python-&python2-version;</seg>
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249 | </seglistitem>
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250 | </segmentedlist>
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251 |
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252 | <variablelist>
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253 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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254 | <?dbfo list-presentation="list"?>
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255 | <?dbhtml list-presentation="table"?>
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256 |
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257 | <varlistentry id="python2-2to3">
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258 | <term><command>2to3</command></term>
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259 | <listitem>
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260 | <para>
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261 | is a <application>Python</application> program that reads
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262 | <application>Python 2.x</application> source code and applies a series of
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263 | fixers to transform it into valid <application>Python 3.x</application>
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264 | code.
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265 | </para>
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266 | <indexterm zone="python2 python2-2to3">
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267 | <primary sortas="b-2to3">2to3</primary>
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268 | </indexterm>
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269 | </listitem>
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270 | </varlistentry>
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271 |
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272 | <varlistentry id="idle2">
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273 | <term><command>idle</command></term>
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274 | <listitem>
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275 | <para>
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276 | is a wrapper script that opens a <application>Python</application>
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277 | aware GUI editor.
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278 | </para>
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279 | <indexterm zone="python2 idle2">
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280 | <primary sortas="b-idle2">idle</primary>
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281 | </indexterm>
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282 | </listitem>
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283 | </varlistentry>
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284 |
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285 | <varlistentry id="pydoc2">
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286 | <term><command>pydoc</command></term>
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287 | <listitem>
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288 | <para>
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289 | is the <application>Python</application> documentation tool.
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290 | </para>
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291 | <indexterm zone="python2 pydoc2">
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292 | <primary sortas="b-pydoc2">pydoc</primary>
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293 | </indexterm>
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294 | </listitem>
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295 | </varlistentry>
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296 |
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297 | <varlistentry id="python">
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298 | <term><command>python</command></term>
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299 | <listitem>
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300 | <para>
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301 | is an interpreted, interactive, object-oriented programming
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302 | language.
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303 | </para>
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304 | <indexterm zone="python2 python">
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305 | <primary sortas="b-python2">python</primary>
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306 | </indexterm>
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307 | </listitem>
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308 | </varlistentry>
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309 |
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310 | <varlistentry id="python2-ver">
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311 | <term><command>python&python2-majorver;</command></term>
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312 | <listitem>
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313 | <para>
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314 | is a version-specific name for the <command>python</command>
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315 | program.
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316 | </para>
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317 | <indexterm zone="python2 python2-ver">
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318 | <primary sortas="b-python&python2-majorver;">python&python2-majorver;</primary>
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319 | </indexterm>
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320 | </listitem>
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321 | </varlistentry>
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322 |
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323 | <varlistentry id="smtpd.py2">
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324 | <term><command>smtpd.py</command></term>
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325 | <listitem>
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326 | <para>
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327 | is an SMTP proxy implemented in <application>Python</application>.
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328 | </para>
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329 | <indexterm zone="python2 smtpd.py2">
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330 | <primary sortas="b-smtpd.py2">smtpd.py</primary>
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331 | </indexterm>
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332 | </listitem>
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333 | </varlistentry>
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334 | </variablelist>
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335 | </sect2>
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336 | </sect1>
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