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 |
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8 | <sect1 id="ch-system-Python" role="wrap">
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9 | <?dbhtml filename="Python.html"?>
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10 |
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11 | <sect1info condition="script">
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12 | <productname>Python</productname>
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13 | <productnumber>&python-version;</productnumber>
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14 | <address>&python-url;</address>
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15 | </sect1info>
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16 |
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17 | <title>Python-&python-version;</title>
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18 |
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19 | <indexterm zone="ch-system-Python">
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20 | <primary sortas="a-Python">Python</primary>
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21 | </indexterm>
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22 |
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23 | <sect2 role="package">
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24 | <title/>
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25 |
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26 | <para>The Python 3 package contains the Python development environment. It
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27 | is useful for object-oriented programming, writing scripts, prototyping
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28 | large programs, or developing entire applications.</para>
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29 |
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30 | <segmentedlist>
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31 | <segtitle>&buildtime;</segtitle>
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32 | <segtitle>&diskspace;</segtitle>
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33 |
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34 | <seglistitem>
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35 | <seg>&python-fin-sbu;</seg>
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36 | <seg>&python-fin-du;</seg>
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37 | </seglistitem>
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38 | </segmentedlist>
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39 |
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40 | </sect2>
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41 |
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42 | <sect2 role="installation">
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43 | <title>Installation of Python 3</title>
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44 |
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45 | <para>Prepare Python for compilation:</para>
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46 |
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47 | <screen><userinput remap="configure">./configure --prefix=/usr \
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48 | --enable-shared \
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49 | --with-system-expat \
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50 | --with-system-ffi \
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51 | --with-ensurepip=yes \
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52 | --enable-optimizations</userinput></screen>
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53 |
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54 | <variablelist>
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55 | <title>The meaning of the configure options:</title>
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56 |
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57 | <varlistentry>
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58 | <term><parameter>--with-system-expat</parameter></term>
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59 | <listitem>
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60 | <para>This switch enables linking against system version of
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61 | <application>Expat</application>.</para>
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62 | </listitem>
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63 | </varlistentry>
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64 |
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65 | <varlistentry>
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66 | <term><parameter>--with-system-ffi</parameter></term>
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67 | <listitem>
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68 | <para>This switch enables linking against system version of
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69 | <application>libffi</application>.</para>
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70 | </listitem>
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71 | </varlistentry>
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72 |
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73 | <varlistentry>
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74 | <term><parameter>--with-ensurepip=yes</parameter></term>
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75 | <listitem>
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76 | <para>This switch enables building <command>pip</command> and
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77 | <command>setuptools</command> packaging programs.</para>
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78 | </listitem>
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79 | </varlistentry>
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80 |
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81 | <varlistentry>
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82 | <term><parameter>--enable-optimizations</parameter></term>
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83 | <listitem>
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84 | <para>This switch enables stable, but expensive, optimizations.</para>
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85 | </listitem>
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86 | </varlistentry>
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87 |
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88 | </variablelist>
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89 |
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90 | <para>Compile the package:</para>
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91 |
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92 | <screen><userinput remap="make">make</userinput></screen>
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93 |
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94 | <para>Running the tests at this point is not recommended. The
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95 | tests are known to hang indefinitely in the partial LFS environment.
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96 | If desired, the tests can be rerun at the end of this chapter or
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97 | when Python 3 is reinstalled in BLFS. To run the tests anyway,
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98 | issue <command>make test</command>.</para>
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99 |
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100 | <para>Install the package:</para>
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101 |
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102 | <screen><userinput remap="install">make install</userinput></screen>
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103 |
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104 | <para>If desired, install the preformatted documentation:</para>
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105 |
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106 | <screen><userinput remap="install">install -v -dm755 /usr/share/doc/python-&python-version;/html
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107 |
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108 | tar --strip-components=1 \
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109 | --no-same-owner \
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110 | --no-same-permissions \
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111 | -C /usr/share/doc/python-&python-version;/html \
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112 | -xvf ../python-&python-version;-docs-html.tar.bz2</userinput></screen>
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113 |
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114 | <variablelist>
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115 | <title>The meaning of the documentation install commands:</title>
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116 |
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117 | <varlistentry>
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118 | <term><option>--no-same-owner</option> and <option>--no-same-permissions</option></term>
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119 | <listitem>
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120 | <para>Ensure the installed files have the correct ownership and
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121 | permissions. Without these options, using <application>tar</application>
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122 | will install the package files with the upstream creator's values.
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123 | </para>
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124 | </listitem>
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125 | </varlistentry>
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126 |
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127 | </variablelist>
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128 |
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129 | </sect2>
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130 |
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131 | <sect2 id="contents-python" role="content">
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132 | <title>Contents of Python 3</title>
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133 |
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134 | <segmentedlist>
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135 | <segtitle>Installed Programs</segtitle>
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136 | <segtitle>Installed Library</segtitle>
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137 | <segtitle>Installed Directories</segtitle>
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138 |
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139 | <seglistitem>
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140 | <seg>
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141 | 2to3, idle3, pip3, pydoc3, python3, and python3-config
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142 | </seg>
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143 | <seg>
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144 | libpython&python-minor;.so and libpython3.so
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145 | </seg>
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146 | <seg>
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147 | /usr/include/python&python-minor;,
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148 | /usr/lib/python3, and
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149 | /usr/share/doc/python-&python-version;
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150 | </seg>
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151 | </seglistitem>
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152 | </segmentedlist>
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153 |
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154 | <variablelist>
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155 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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156 | <?dbfo list-presentation="list"?>
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157 | <?dbhtml list-presentation="table"?>
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158 |
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159 | <varlistentry id="python-2to3">
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160 | <term><command>2to3</command></term>
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161 | <listitem>
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162 | <para>
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163 | is a <application>Python</application> program that reads
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164 | <application>Python 2.x</application> source code and applies a
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165 | series of fixes to transform it into
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166 | valid <application>Python 3.x</application> code
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167 | </para>
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168 | <indexterm zone="ch-system-Python">
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169 | <primary sortas="b-2to3">2to3</primary>
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170 | </indexterm>
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171 | </listitem>
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172 | </varlistentry>
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173 |
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174 | <varlistentry id="idle3">
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175 | <term><command>idle3</command></term>
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176 | <listitem>
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177 | <para>
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178 | is a wrapper script that opens a <application>Python</application>
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179 | aware GUI editor. For this script to run, you must have installed
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180 | <application>Tk</application> before Python so that the Tkinter
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181 | Python module is built
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182 | </para>
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183 | <indexterm zone="ch-system-Python">
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184 | <primary sortas="b-idle3">idle3</primary>
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185 | </indexterm>
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186 | </listitem>
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187 | </varlistentry>
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188 |
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189 | <varlistentry id="pip3">
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190 | <term><command>pip3</command></term>
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191 | <listitem>
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192 | <para>
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193 | The package installer for Python. You can use pip to install
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194 | packages from Python Package Index and other indexes
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195 | </para>
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196 | <indexterm zone="ch-system-Python">
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197 | <primary sortas="b-pip3">pip3</primary>
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198 | </indexterm>
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199 | </listitem>
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200 | </varlistentry>
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201 |
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202 | <varlistentry id="pydoc3">
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203 | <term><command>pydoc3</command></term>
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204 | <listitem>
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205 | <para>
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206 | is the <application>Python</application> documentation tool
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207 | </para>
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208 | <indexterm zone="ch-system-Python">
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209 | <primary sortas="b-pydoc3">pydoc3</primary>
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210 | </indexterm>
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211 | </listitem>
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212 | </varlistentry>
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213 |
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214 | <varlistentry id="python3">
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215 | <term><command>python3</command></term>
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216 | <listitem>
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217 | <para>
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218 | is an interpreted, interactive, object-oriented programming
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219 | language
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220 | </para>
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221 | <indexterm zone="ch-system-Python">
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222 | <primary sortas="b-python3">python3</primary>
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223 | </indexterm>
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224 | </listitem>
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225 | </varlistentry>
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226 |
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227 | </variablelist>
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228 |
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229 | </sect2>
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230 |
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231 | </sect1>
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232 |
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