source: general/prog/python3.xml@ 23c5563

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Last change on this file since 23c5563 was 23c5563, checked in by Pierre Labastie <pieere@…>, 7 years ago

Command explanation for --with-ensurepip in Python[23]

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@18829 af4574ff-66df-0310-9fd7-8a98e5e911e0

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY python3-download-http
8 "https://www.python.org/ftp/python/&python3-version;/Python-&python3-version;.tar.xz">
9 <!ENTITY python3-download-ftp " ">
10 <!ENTITY python3-md5sum "692b4fc3a2ba0d54d1495d4ead5b0b5c">
11 <!ENTITY python3-size "16 MB">
12 <!ENTITY python3-buildsize "355 MB (with docs; add 25 MB for the tests)">
13 <!ENTITY python3-time "1.3 SBU (add 0.6 SBU for the tests)">
14
15 <!ENTITY python3htmldoc-download-http
16 "https://docs.python.org/&python3-majorver;/archives/python-&python3-version;-docs-html.tar.bz2">
17]>
18
19<sect1 id="python3" xreflabel="Python-&python3-version;">
20 <?dbhtml filename="python3.html" ?>
21
22 <sect1info>
23 <othername>$LastChangedBy$</othername>
24 <date>$Date$</date>
25 </sect1info>
26
27 <title>Python-&python3-version;</title>
28
29 <indexterm zone="python3">
30 <primary sortas="a-Python3">Python3</primary>
31 </indexterm>
32
33 <sect2 role="package">
34 <title>Introduction to Python 3</title>
35
36 <para>
37 The <application>Python 3</application> package contains the
38 <application>Python</application> development environment.
39 This is useful for object-oriented programming, writing scripts,
40 prototyping large programs or developing entire applications.
41 </para>
42
43 &lfs80_checked;
44
45 <bridgehead renderas="sect3">Package Information</bridgehead>
46 <itemizedlist spacing="compact">
47 <listitem>
48 <para>
49 Download (HTTP): <ulink url="&python3-download-http;"/>
50 </para>
51 </listitem>
52 <listitem>
53 <para>
54 Download (FTP): <ulink url="&python3-download-ftp;"/>
55 </para>
56 </listitem>
57 <listitem>
58 <para>
59 Download MD5 sum: &python3-md5sum;
60 </para>
61 </listitem>
62 <listitem>
63 <para>
64 Download size: &python3-size;
65 </para>
66 </listitem>
67 <listitem>
68 <para>
69 Estimated disk space required: &python3-buildsize;
70 </para>
71 </listitem>
72 <listitem>
73 <para>
74 Estimated build time: &python3-time;
75 </para>
76 </listitem>
77 </itemizedlist>
78
79 <bridgehead renderas="sect3">Additional Downloads</bridgehead>
80 <itemizedlist spacing="compact">
81 <title>Optional HTML Documentation</title>
82 <listitem>
83 <para>
84 Download (HTTP): <ulink url="&python3htmldoc-download-http;"/>
85 </para>
86 </listitem>
87 </itemizedlist>
88
89 <bridgehead renderas="sect3">Python 3 Dependencies</bridgehead>
90
91 <bridgehead renderas="sect4">Recommended</bridgehead>
92 <para role="recommended">
93 <xref linkend="libffi"/>
94 </para>
95
96 <bridgehead renderas="sect4">Optional</bridgehead>
97 <para role="optional">
98 <xref linkend="bluez"/>,
99 <xref linkend="gdb"/> (required for some tests), and
100 <xref linkend="valgrind"/>
101 </para>
102
103 <bridgehead renderas="sect4">Optional (For Additional Modules)</bridgehead>
104 <para role="optional">
105 <xref linkend="db"/>,
106 <xref linkend="openssl"/>,
107 <xref linkend="sqlite"/> and
108 <xref linkend="tk"/>
109 </para>
110
111 <para condition="html" role="usernotes">User Notes:
112 <ulink url="&blfs-wiki;/Python3"/>
113 </para>
114 </sect2>
115
116 <sect2 role="installation">
117 <title>Installation of Python 3</title>
118
119 <para>
120 Install <application>Python 3</application> by running the following
121 commands:
122 </para>
123
124<screen><userinput>CXX="/usr/bin/g++" \
125./configure --prefix=/usr \
126 --enable-shared \
127 --with-system-expat \
128 --with-system-ffi \
129 --with-ensurepip=yes &amp;&amp;
130make</userinput></screen>
131
132 <para>
133 The test suite must be run separately, using an X terminal (see below).
134 </para>
135
136 <para>
137 Now, as the <systemitem class="username">root</systemitem> user:
138 </para>
139
140<screen role="root"><userinput>make install &amp;&amp;
141chmod -v 755 /usr/lib/libpython&python3-majorver;m.so &amp;&amp;
142chmod -v 755 /usr/lib/libpython3.so</userinput></screen>
143
144 <para>
145 If you have downloaded the preformatted documentation from
146 <ulink url="http://docs.python.org/download.html"/>, install it
147 as the <systemitem class="username">root</systemitem> user:
148 </para>
149
150<screen role="root"><userinput>install -v -dm755 /usr/share/doc/python-&python3-version;/html &amp;&amp;
151tar --strip-components=1 \
152 --no-same-owner \
153 --no-same-permissions \
154 -C /usr/share/doc/python-&python3-version;/html \
155 -xvf ../python-&python3-version;-docs-html.tar.bz2</userinput></screen>
156
157 <para>
158 The test suite must be run separately from the build, either before or
159 after the package is built and installed. Do not run
160 <command>make install</command>, after running the test suite. To build
161 and install the package, you need to start with a fresh or clean source
162 tree. For the test, you also need a clean source code, so either start by
163 removing the source code directory and starting over, by uncompressing
164 the source tarball or by running <command>make clean</command>. Then
165 configure again, adding <quote>--with-pydebug</quote> to the
166 <command>configure</command> switches above, run <command>make</command>,
167 then <command>make test</command>. Remember that tests must be executed
168 using an X terminal.
169 </para>
170
171 </sect2>
172
173 <sect2 role="commands">
174 <title>Command Explanations</title>
175
176 <para>
177 <command> CXX="/usr/bin/g++" ./configure ...</command>: Avoid an annoying
178 message during configuration.
179 </para>
180
181 <para>
182 <parameter>--with-system-expat</parameter>: This switch enables linking
183 against the system version of <application>Expat</application>.
184 </para>
185
186 <para>
187 <parameter>--with-system-ffi</parameter>: This switch enables linking
188 against system version of <application>libffi</application>. Remove if
189 you have not installed <xref linkend="libffi"/>.
190 </para>
191
192 <para>
193 <parameter>--with-ensurepip=yes</parameter> : This switch enables building
194 <command>pip</command> and <command>setuptools</command> packaging programs.
195 <command>setuptools</command> is needed for building some Python modules.
196 </para>
197
198 <para>
199 <option>--with-dbmliborder=bdb:gdbm:ndbm</option>: Use this switch
200 if you want to build <application>Python</application> DBM Module
201 against <application>Berkeley DB</application> instead of
202 <application>GDBM</application>.
203 </para>
204
205 <para>
206 <command>chmod ...</command>: Fix permissions for shared libraries to be
207 consistent with other libraries.
208 </para>
209
210 </sect2>
211
212 <sect2 role="configuration">
213 <title>Configuring Python 3</title>
214
215 <para>
216 In order for <command>python3</command> to find the installed
217 documentation, create the following version independent symlink:
218 </para>
219
220<screen role="root"><userinput>ln -svfn python-&python3-version; /usr/share/doc/python-3</userinput></screen>
221
222 <para>
223 and add the following environment variable to the individual user's or
224 system's profile:
225 </para>
226
227<screen role="root"><userinput>export PYTHONDOCS=/usr/share/doc/python-3/html</userinput></screen>
228
229 </sect2>
230
231 <sect2 role="content">
232 <title>Contents</title>
233
234 <segmentedlist>
235 <segtitle>Installed Programs</segtitle>
236 <segtitle>Installed Libraries</segtitle>
237 <segtitle>Installed Directories</segtitle>
238
239 <seglistitem>
240 <seg>
241 2to3 (symlink),
242 2to3-&python3-majorver;,
243
244 pydoc3 (symlink),
245 pydoc&python3-majorver;,
246
247 python3 (symlink);
248 python&python3-majorver; and python&python3-majorver;m (hardlinked);
249
250 python3-config (symlink),
251 python&python3-majorver;-config (symlink),
252 python&python3-majorver;m-config,
253
254 pyvenv (symlink),
255 pyvenv-&python3-majorver;,
256
257 idle3 (symlink), and
258 idle&python3-majorver;
259 </seg>
260 <seg>
261 libpython&python3-majorver;m.so and libpython3.so
262 </seg>
263 <seg>
264 /usr/include/python&python3-majorver;m,
265 /usr/lib/python&python3-majorver;, and
266 /usr/share/doc/python-&python3-version;
267 </seg>
268 </seglistitem>
269 </segmentedlist>
270
271 <variablelist>
272 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
273 <?dbfo list-presentation="list"?>
274 <?dbhtml list-presentation="table"?>
275
276 <varlistentry id="idle3">
277 <term><command>idle3</command></term>
278 <listitem>
279 <para>
280 is a wrapper script that opens a <application>Python</application>
281 aware GUI editor. For this script to run, you must have installed
282 <application>Tk</application> before Python so that the Tkinter
283 Python module is built.
284 </para>
285 <indexterm zone="python3 idle3">
286 <primary sortas="b-idle3">idle3</primary>
287 </indexterm>
288 </listitem>
289 </varlistentry>
290
291 <varlistentry id="pydoc3">
292 <term><command>pydoc3</command></term>
293 <listitem>
294 <para>
295 is the <application>Python</application> documentation
296 tool.
297 </para>
298 <indexterm zone="python3 pydoc3">
299 <primary sortas="b-pydoc3">pydo3c</primary>
300 </indexterm>
301 </listitem>
302 </varlistentry>
303
304 <varlistentry id="python3-prog">
305 <term><command>python3</command></term>
306 <listitem>
307 <para>
308 is an interpreted, interactive, object-oriented programming
309 language.
310 </para>
311 <indexterm zone="python3 python3-prog">
312 <primary sortas="b-python3">python3</primary>
313 </indexterm>
314 </listitem>
315 </varlistentry>
316
317 <varlistentry id="python-ver">
318 <term><command>python&python3-majorver;</command></term>
319 <listitem>
320 <para>
321 is a version-specific name for the <command>python</command>
322 program.
323 </para>
324 <indexterm zone="python3 python-ver">
325 <primary
326 sortas="b-python&python3-majorver;">python&python3-majorver;</primary>
327 </indexterm>
328 </listitem>
329 </varlistentry>
330
331 <varlistentry id="pyvenv">
332 <term><command>pyvenv</command></term>
333 <listitem>
334 <para>
335 creates virtual <application>Python</application> environments in
336 one or more target directories.
337 </para>
338 <indexterm zone="python3 pyvenv">
339 <primary
340 sortas="b-python&python3-majorver;">python&python3-majorver;</primary>
341 </indexterm>
342 </listitem>
343 </varlistentry>
344
345 </variablelist>
346
347 </sect2>
348
349</sect1>
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