source: general/prog/python2.xml@ 420d60b

10.0 10.1 11.0 9.1 ken/refactor-virt lazarus qt5new trunk upgradedb xry111/git-date xry111/git-date-for-trunk xry111/git-date-test
Last change on this file since 420d60b was 420d60b, checked in by Bruce Dubbs <bdubbs@…>, 2 years ago

Update to Python-2.7.17.
Update to proftpd-1.3.6b.

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@22297 af4574ff-66df-0310-9fd7-8a98e5e911e0

  • Property mode set to 100644
File size: 11.9 KB
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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 python2-download-http
8 "https://www.python.org/ftp/python/&python2-version;/Python-&python2-version;.tar.xz">
9 <!ENTITY python2-download-ftp " ">
10 <!ENTITY python2-md5sum "b3b6d2c92f42a60667814358ab9f0cfd">
11 <!ENTITY python2-size "12 MB">
12 <!ENTITY python2-buildsize "134 MB (add 17 MB for tests)">
13 <!ENTITY python2-time "0.7 SBU (Using parallelism=4; add 7.1 SBU for tests)">
14
15 <!ENTITY python2htmldoc-download-http
16 "https://docs.python.org/ftp/python/doc/&python2-version;/python-&python2-version;-docs-html.tar.bz2">
17]>
18
19<sect1 id="python2" xreflabel="Python-&python2-version;">
20 <?dbhtml filename="python2.html" ?>
21
22 <sect1info>
23 <othername>$LastChangedBy$</othername>
24 <date>$Date$</date>
25 </sect1info>
26
27 <title>Python-&python2-version;</title>
28
29 <indexterm zone="python2">
30 <primary sortas="a-Python2">Python2</primary>
31 </indexterm>
32
33 <sect2 role="package">
34 <title>Introduction to Python 2</title>
35
36 <para>
37 The <application>Python 2</application> package contains the
38 <application>Python</application> development environment. It is useful
39 for object-oriented programming, writing scripts, prototyping large
40 programs or developing entire applications. This version is for backward
41 compatibility with other dependent packages.
42 </para>
43
44 <note>
45 <para>
46 Python2 has been deprecated by the upstream developers.
47 Support for Python2 will be discontinued on January
48 1st, 2020.
49 </para>
50
51 <para>
52 BLFS is attempting to use Python3 as much as possible, but some
53 packages have not been updated to support Python3.
54 </para>
55 </note>
56
57
58 &lfs90_checked;
59
60 <bridgehead renderas="sect3">Package Information</bridgehead>
61 <itemizedlist spacing="compact">
62 <listitem>
63 <para>
64 Download (HTTP): <ulink url="&python2-download-http;"/>
65 </para>
66 </listitem>
67 <listitem>
68 <para>
69 Download (FTP): <ulink url="&python2-download-ftp;"/>
70 </para>
71 </listitem>
72 <listitem>
73 <para>
74 Download MD5 sum: &python2-md5sum;
75 </para>
76 </listitem>
77 <listitem>
78 <para>
79 Download size: &python2-size;
80 </para>
81 </listitem>
82 <listitem>
83 <para>
84 Estimated disk space required: &python2-buildsize;
85 </para>
86 </listitem>
87 <listitem>
88 <para>
89 Estimated build time: &python2-time;
90 </para>
91 </listitem>
92 </itemizedlist>
93
94 <bridgehead renderas="sect3">Additional Downloads</bridgehead>
95
96 <itemizedlist spacing="compact">
97 <title>Optional HTML Documentation</title>
98 <listitem>
99 <para>
100 Download (HTTP): <ulink url="&python2htmldoc-download-http;"/>
101 </para>
102 </listitem>
103 </itemizedlist>
104
105 <bridgehead renderas="sect3">Python 2 Dependencies</bridgehead>
106<!--
107 <bridgehead renderas="sect4">Recommended</bridgehead>
108 <para role="recommended">
109 <xref linkend="libffi"/>
110 </para>
111-->
112 <bridgehead renderas="sect4">Optional</bridgehead>
113 <para role="optional">
114 <xref linkend="bluez"/> and
115 <xref linkend="valgrind"/>
116 </para>
117
118 <bridgehead renderas="sect4">Optional (For Additional Modules)</bridgehead>
119 <para role="optional">
120 <xref linkend="sqlite"/> and
121 <xref linkend="tk"/>
122 </para>
123
124 <para condition="html" role="usernotes">
125 User Notes: <ulink url="&blfs-wiki;/Python"/>
126 </para>
127 </sect2>
128
129 <sect2 role="installation">
130 <title>Installation of Python 2</title>
131
132 <caution>
133 <para>
134 After installing this package or
135 updating <application>pip2</application> with the command
136 <command>pip2 install --upgrade pip</command>, it will remove
137 <application>pip3</application> installed in LFS. To reset
138 <application>pip</application> and <application>pip3</application>,
139 run, as the <systemitem class="username">root</systemitem> user:
140 </para>
141
142<screen role="nodump"><userinput>python3 -m pip install --force pip</userinput></screen>
143 </caution>
144
145 <para>
146 Install <application>Python 2</application> by running the following
147 commands:
148 </para>
149
150<screen><userinput>./configure --prefix=/usr \
151 --enable-shared \
152 --with-system-expat \
153 --with-system-ffi \
154 --with-ensurepip=yes \
155 --enable-unicode=ucs4 &amp;&amp;
156make</userinput></screen>
157
158 <para>
159 To test the results, issue: <command>make -k test</command>.
160 </para>
161
162 <para>
163 Now, as the <systemitem class="username">root</systemitem> user:
164 </para>
165
166<screen role="root"><userinput>make install &amp;&amp;
167chmod -v 755 /usr/lib/libpython&python2-majorver;.so.1.0</userinput></screen>
168
169 <para>
170 Since <application>Python 2</application> is in maintenance mode, and
171 <application>Python 3</application> is recommended by upstream for
172 development, you probably do not need to install the documentation.
173 However, if you still want to install documentation for both
174 <application>Python</application> versions, be sure to define the
175 <envar>PYTHONDOCS</envar>
176 variable for the version you want to use, each time you need to consult
177 the documentation. If you have downloaded the preformatted documentation
178 from <ulink url="http://docs.python.org/download.html"/>, install it
179 as the <systemitem class="username">root</systemitem> user:
180 </para>
181
182<screen role="root"><userinput>install -v -dm755 /usr/share/doc/python-&python2-version; &amp;&amp;
183
184tar --strip-components=1 \
185 --no-same-owner \
186 --directory /usr/share/doc/python-&python2-version; \
187 -xvf ../python-&python2-version;-docs-html.tar.bz2 &amp;&amp;
188
189find /usr/share/doc/python-&python2-version; -type d -exec chmod 0755 {} \; &amp;&amp;
190find /usr/share/doc/python-&python2-version; -type f -exec chmod 0644 {} \;</userinput></screen>
191 </sect2>
192
193 <sect2 role="commands">
194 <title>Command Explanations</title>
195
196 <para>
197 <parameter>--with-system-expat</parameter>: This switch enables linking
198 against system version of <application>Expat</application>.
199 </para>
200
201 <para>
202 <parameter>--with-system-ffi</parameter>: This switch enables linking
203 against system version of <application>libffi</application>.
204 </para>
205
206 <para>
207 <parameter>--with-ensurepip=yes</parameter> : This switch enables building
208 <command>pip</command> and <command>setuptools</command> packaging programs.
209 <command>setuptools</command> is needed for building some Python modules.
210 </para>
211
212 <para>
213 <parameter>--enable-unicode=ucs4</parameter>: This switch enables
214 32bit Unicode support in <application>Python</application>.
215 </para>
216
217 <para>
218 <option>--with-dbmliborder=bdb:gdbm:ndbm</option>: Use this switch
219 if you want to build <application>Python</application> DBM Module
220 against <application>Berkeley DB</application> instead of
221 <application>GDBM</application>.
222 </para>
223
224 <para>
225 <command>chmod ...</command>: Fix permissions for libraries to be
226 consistent with other libraries.
227 </para>
228
229 </sect2>
230
231 <sect2 role="configuration">
232 <title>Configuring Python 2</title>
233
234 <para>
235 In order for <command>python</command> to find the installed
236 documentation, you must add the following environment variable to
237 individual user's or the system's profile:
238 </para>
239
240<screen role="root"><userinput>export PYTHONDOCS=/usr/share/doc/python-&python2-version;</userinput></screen>
241
242 </sect2>
243
244 <sect2 role="content">
245 <title>Contents</title>
246
247 <segmentedlist>
248 <segtitle>Installed Programs</segtitle>
249 <segtitle>Installed Library</segtitle>
250 <segtitle>Installed Directories</segtitle>
251
252 <seglistitem>
253 <seg>
254 2to3, pip2, pydoc, python (symlink), python-config (symlink),
255 python2 (symlink), python2-config (symlink),
256 python&python2-majorver;, python&python2-majorver;-config,
257 smtpd.py, and idle
258 </seg>
259 <seg>
260 libpython&python2-majorver;.so
261 </seg>
262 <seg>
263 /usr/{include,lib}/python&python2-majorver; and
264 /usr/share/doc/python-&python2-version;
265 </seg>
266 </seglistitem>
267 </segmentedlist>
268
269 <variablelist>
270 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
271 <?dbfo list-presentation="list"?>
272 <?dbhtml list-presentation="table"?>
273
274 <varlistentry id="python2-2to3">
275 <term><command>2to3</command></term>
276 <listitem>
277 <para>
278 is a <application>Python</application> program that reads
279 <application>Python 2.x</application> source code and applies a
280 series of fixes to transform it into valid
281 <application>Python 3.x</application> code.
282 </para>
283 <indexterm zone="python2 python2-2to3">
284 <primary sortas="b-2to3">2to3</primary>
285 </indexterm>
286 </listitem>
287 </varlistentry>
288
289 <varlistentry id="pip2">
290 <term><command>pip2</command></term>
291 <listitem>
292 <para>
293 is the package manager for <application>Python 2.x</application>.
294 It is used to automate management of
295 <application>Python 2.x</application> modules.
296 </para>
297 <indexterm zone="python2 pip2">
298 <primary sortas="b-pip2">pip2</primary>
299 </indexterm>
300 </listitem>
301 </varlistentry>
302
303 <varlistentry id="idle">
304 <term><command>idle</command></term>
305 <listitem>
306 <para>
307 is a wrapper script that opens a <application>Python</application>
308 aware GUI editor. For this script to run, you must have installed
309 <application>Tk</application> before Python so that the Tkinter
310 Python module is built.
311 </para>
312 <indexterm zone="python2 idle">
313 <primary sortas="b-idle">idle</primary>
314 </indexterm>
315 </listitem>
316 </varlistentry>
317
318 <varlistentry id="pydoc2">
319 <term><command>pydoc</command></term>
320 <listitem>
321 <para>
322 is the <application>Python</application> documentation tool.
323 </para>
324 <indexterm zone="python2 pydoc2">
325 <primary sortas="b-pydoc2">pydoc</primary>
326 </indexterm>
327 </listitem>
328 </varlistentry>
329
330 <varlistentry id="python">
331 <term><command>python</command></term>
332 <listitem>
333 <para>
334 is an interpreted, interactive, object-oriented programming
335 language.
336 </para>
337 <indexterm zone="python2 python">
338 <primary sortas="b-python2">python</primary>
339 </indexterm>
340 </listitem>
341 </varlistentry>
342
343 <varlistentry id="python2-ver">
344 <term><command>python&python2-majorver;</command></term>
345 <listitem>
346 <para>
347 is a version-specific name for the <command>python</command>
348 program.
349 </para>
350 <indexterm zone="python2 python2-ver">
351 <primary sortas="b-python&python2-majorver;">python&python2-majorver;</primary>
352 </indexterm>
353 </listitem>
354 </varlistentry>
355
356 <varlistentry id="smtpd.py">
357 <term><command>smtpd.py</command></term>
358 <listitem>
359 <para>
360 is an SMTP proxy implemented in <application>Python</application>.
361 </para>
362 <indexterm zone="python2 smtpd.py">
363 <primary sortas="b-smtpd.py">smtpd.py</primary>
364 </indexterm>
365 </listitem>
366 </varlistentry>
367
368 </variablelist>
369
370 </sect2>
371
372</sect1>
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