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Greg Wardabc52162000-02-26 00:52:48 +00001\documentclass{howto}
2\usepackage{ltxmarkup}
Greg Wardfacb8db2000-04-09 04:32:40 +00003\usepackage{times}
Greg Ward16aafcd2000-04-09 04:06:44 +00004\usepackage{distutils}
Greg Wardabc52162000-02-26 00:52:48 +00005
Greg Ward16aafcd2000-04-09 04:06:44 +00006\title{Distributing Python Modules}
Greg Wardabc52162000-02-26 00:52:48 +00007
Greg Wardabc52162000-02-26 00:52:48 +00008\author{Greg Ward}
9\authoraddress{E-mail: \email{gward@python.net}}
10
Greg Ward16aafcd2000-04-09 04:06:44 +000011
Greg Wardabc52162000-02-26 00:52:48 +000012\begin{document}
13
Greg Wardfacb8db2000-04-09 04:32:40 +000014\maketitle
15\tableofcontents
Greg Ward16aafcd2000-04-09 04:06:44 +000016
17\section{Introduction}
Greg Warde78298a2000-04-28 17:12:24 +000018\label{intro}
Greg Ward16aafcd2000-04-09 04:06:44 +000019
20In the past, Python module developers have not had much infrastructure
21support for distributing modules, nor have Python users had much support
22for installing and maintaining third-party modules. With the
23introduction of the Python Distribution Utilities (Distutils for short)
24in Python 1.6, this situation should start to improve.
25
26This document only covers using the Distutils to distribute your Python
27modules. Using the Distutils does not tie you to Python 1.6, though:
28the Distutils work just fine with Python 1.5, and it is reasonable (and
29expected to become commonplace) to expect users of Python 1.5 to
30download and install the Distutils separately before they can install
31your modules. Python 1.6 users, of course, won't have to add anything
32to their Python installation in order to use the Distutils to install
33third-party modules.
34
35This document concentrates on the role of developer/distributor: if
36you're looking for information on installing Python modules, you should
37refer to the ``Installing Python Modules'' manual.
38
39
Greg Wardfacb8db2000-04-09 04:32:40 +000040\section{Concepts \& Terminology}
Greg Warde78298a2000-04-28 17:12:24 +000041\label{concepts}
Greg Ward16aafcd2000-04-09 04:06:44 +000042
43Using the Distutils is quite simple, both for module developers and for
44users/administrators installing third-party modules. As a developer,
45your responsibilites (apart from writing solid, well-documented and
46well-tested code, of course!) are:
47\begin{itemize}
48\item write a setup script (\file{setup.py} by convention)
49\item (optional) write a setup configuration file
50\item create a source distribution
51\item (optional) create one or more built (binary) distributions
52\end{itemize}
53Each of these tasks is covered in this document.
54
55Not all module developers have access to a multitude of platforms, so
56it's not always feasible to expect them to create a multitude of built
57distributions. It is hoped that a class of intermediaries, called
58\emph{packagers}, will arise to take address this need. Packagers will
59take source distributions released by module developers, build them on
60one or more platforms, and release the resulting built distributions.
61Thus, users on the most popular platforms will be able to install most
62popular Python module distributions in the most natural way for their
63platform, without having to run a single setup script or compile a line
64of code.
65
66
67\subsection{A simple example}
Greg Warde78298a2000-04-28 17:12:24 +000068\label{simple-example}
Greg Ward16aafcd2000-04-09 04:06:44 +000069
70The setup script is usually quite simple, although since it's written in
71Python, there are no arbitrary limits to what you can do. If all you
72want to do is distribute a module called \module{foo}, contained in a
73file \file{foo.py}, then you can get away with as little as this:
74\begin{verbatim}
75from distutils.core import setup
76setup (name = "foo",
77 version = "1.0",
78 py_modules = ["foo"])
79\end{verbatim}
80Some observations:
81\begin{itemize}
82\item all information that you supply to the Distutils is supplied as
Greg Wardfacb8db2000-04-09 04:32:40 +000083 keyword arguments to the \function{setup()} function
Greg Ward16aafcd2000-04-09 04:06:44 +000084\item those keyword arguments fall into two categories: package
85 meta-data (name, version number) and information about what's in the
86 package (list of pure modules, in this case)
87\item modules are specified by module name, not filename (the same will
88 hold true for packages and extensions)
89\item it's recommended that you supply a little more meta-data, in
90 particular your name, email address and a URL for the project
91\end{itemize}
92
93To create a source distribution for this module, you would run
94\begin{verbatim}
95python setup.py sdist
96\end{verbatim}
97which will create an archive file (e.g., tarball on Unix, zip file on
98Windows) containing your setup script, \file{setup.py}, and your module,
99\file{foo.py}. The archive file will be named \file{Foo-1.0.tar.gz} (or
100\file{.zip}), and will unpack into a directory \file{Foo-1.0}.
101
102If an end-user wishes to install your \module{foo} module, all she has
Greg Ward59d382e2000-05-26 01:04:47 +0000103to do is download \file{Foo-1.0.tar.gz} (or \file{.zip}), unpack it,
Greg Ward16aafcd2000-04-09 04:06:44 +0000104and---from the \file{Foo-1.0} directory---run
105\begin{verbatim}
106python setup.py install
107\end{verbatim}
108which will ultimately copy \file{foo.py} to the appropriate directory
109for third-party modules in their Python installation.
110
111This simple example demonstrates some fundamental concepts of the
112Distutils: first, both developers and installers have the same basic
113user interface, i.e. the setup script. The difference is which
114Distutils \emph{commands} they use: the \command{sdist} command is
115almost exclusively for module developers, while \command{install} is
116more often for installers (although most developers will want to install
117their own code occasionally).
118
119\XXX{only partially implemented}%
120If you want to make things really easy for your users, you can create
121one or more built distributions for them. For instance, if you are
122running on a Windows machine, and want to make things easy for other
123Windows users, you can create an executable installer (the most
124appropriate type of built distribution for this platform) with the
Greg Ward59d382e2000-05-26 01:04:47 +0000125\command{bdist\_wininst} command. For example:
Greg Ward16aafcd2000-04-09 04:06:44 +0000126\begin{verbatim}
Greg Ward59d382e2000-05-26 01:04:47 +0000127python setup.py bdist_wininst
Greg Ward16aafcd2000-04-09 04:06:44 +0000128\end{verbatim}
Greg Wardfacb8db2000-04-09 04:32:40 +0000129will create an executable installer, \file{Foo-1\_0.exe}, in the current
Greg Ward16aafcd2000-04-09 04:06:44 +0000130directory.
131
Greg Ward59d382e2000-05-26 01:04:47 +0000132(Another way to create executable installers for Windows is with the
133\command{bdist\_wise} command, which uses Wise---the commercial
134installer-generator used to create Python's own installer---to create
135the installer. Wise-based installers are more appropriate for large,
136industrial-strength applications that need the full capabilities of a
137``real'' installer. \command{bdist\_wininst} creates a self-extracting
138zip file with a minimal user interface, which is enough for small- to
139medium-sized module collections. You'll need to have version XXX of
140Wise installed on your system for the \command{bdist\_wise} to work;
141it's available from \url{http://foo/bar/baz}.)
142
143Other \command{bdist} commands exist for other platforms: for example,
144\command{bdist\_rpm} for RPM-based Linux systems, (\command{bdist\_deb})
145for Debian-based Linux systems, and so forth. See
146section~\ref{bdist-cmds} for details on all the \command{bdist}
147commands.
Greg Ward16aafcd2000-04-09 04:06:44 +0000148
149
150\subsection{General Python terminology}
Greg Warde78298a2000-04-28 17:12:24 +0000151\label{python-terms}
Greg Ward16aafcd2000-04-09 04:06:44 +0000152
153If you're reading this document, you probably have a good idea of what
154modules, extensions, and so forth are. Nevertheless, just to be sure
155that everyone is operating from a common starting point, we offer the
156following glossary of common Python terms:
157\begin{description}
158\item[module] the basic unit of code reusability in Python: a block of
159 code imported by some other code. There are three types of modules
160 that concern us here: pure Python modules, extension modules, and
161 packages.
162\item[pure Python module] a module written in Python and contained in a
163 single \file{.py} file (and possibly associated \file{.pyc} and/or
164 \file{.pyo} files). Sometimes referred to as a ``pure module.''
165\item[extension module] a module written in the low-level language of
166 the Python implemention: C/C++ for CPython, Java for JPython.
167 Typically contained in a single dynamically loadable pre-compiled
168 file, e.g. a shared object (\file{.so}) file for CPython extensions on
169 Unix, a DLL (given the \file{.pyd} extension) for CPython extensions
170 on Windows, or a Java class file for JPython extensions.
171\item[package] a module that contains other modules; typically contained
172 in a directory in the filesystem and distinguished from other
173 directories by the presence of a file \file{\_\_init\_\_.py}.
Greg Ward59d382e2000-05-26 01:04:47 +0000174\item[root package] the ``package'' that modules not in a package live
175 in. The vast majority of the standard library is in the root package,
176 as are many small, standalone third-party modules that don't belong to
177 a larger module collection. (The root package isn't really a package,
178 since it doesn't have an \file{\_\_init\_\_.py} file. But we have to
179 call it something.)
Greg Ward16aafcd2000-04-09 04:06:44 +0000180\end{description}
181
182
183\subsection{Distutils-specific terminology}
Greg Warde78298a2000-04-28 17:12:24 +0000184\label{distutils-term}
Greg Ward16aafcd2000-04-09 04:06:44 +0000185
186The following terms apply more specifically to the domain of
187distributing Python modules using the Distutils:
188\begin{description}
189\item[module distribution] a collection of Python modules distributed
190 together as a single downloadable resource and meant to be installed
191 \emph{en masse}. Examples of some well-known module distributions are
192 Numeric Python, PyXML, PIL (the Python Imaging Library), or
193 mxDateTime. (This would be called a \emph{package}, except that term
Greg Ward59d382e2000-05-26 01:04:47 +0000194 is already taken in the Python context: a single module distribution
195 may contain zero, one, or many Python packages.)
Greg Ward16aafcd2000-04-09 04:06:44 +0000196\item[pure module distribution] a module distribution that contains only
197 pure Python modules and packages. Sometimes referred to as a ``pure
198 distribution.''
199\item[non-pure module distribution] a module distribution that contains
200 at least one extension module. Sometimes referred to as a ``non-pure
201 distribution.''
202\item[distribution root] the top-level directory of your source tree (or
203 source distribution); the directory where \file{setup.py} exists and
204 is run from
205\end{description}
206
207
208\section{Writing the Setup Script}
Greg Warde78298a2000-04-28 17:12:24 +0000209\label{setup-script}
Greg Ward16aafcd2000-04-09 04:06:44 +0000210
211The setup script is the centre of all activity in building,
212distributing, and installing modules using the Distutils. The main
213purpose of the setup script is to describe your module distribution to
Greg Wardd5767a52000-04-19 22:48:09 +0000214the Distutils, so that the various commands that operate on your modules
Greg Ward59d382e2000-05-26 01:04:47 +0000215do the right thing. As we saw in section~\ref{simple-example} above,
216the setup script consists mainly of a call to \function{setup()}, and
217all information supplied to the Distutils is supplied as keyword
Greg Wardfacb8db2000-04-09 04:32:40 +0000218arguments to \function{setup()}.
Greg Ward16aafcd2000-04-09 04:06:44 +0000219
220Here's a slightly more involved example, which we'll follow for the next
221couple of sections: the Distutils' own setup script. (Keep in mind that
222although the Distutils are included with Python 1.6, they also have an
223independent existence so that Python 1.5 users can use them to install
Greg Ward59d382e2000-05-26 01:04:47 +0000224other module distributions. The Distutils' own setup script is used to
225install the package into Python 1.5.)
Greg Ward16aafcd2000-04-09 04:06:44 +0000226
227\begin{verbatim}
228#!/usr/bin/env python
229
230from distutils.core import setup
231
232setup (name = "Distutils",
233 version = "1.0",
234 description = "Python Module Distribution Utilities",
235 author = "Greg Ward",
236 author_email = "gward@python.net",
237 url = "http://www.python.org/sigs/distutils-sig/",
238
239 packages = ['distutils', 'distutils.command'],
240 )
241\end{verbatim}
242There are only two differences between this and the trivial one-file
Greg Warde78298a2000-04-28 17:12:24 +0000243distribution presented in section~\ref{simple-example}: more
Greg Ward16aafcd2000-04-09 04:06:44 +0000244meta-data, and the specification of pure Python modules by package,
245rather than by module. This is important since the Distutils consist of
246a couple of dozen modules split into (so far) two packages; an explicit
247list of every module would be tedious to generate and difficult to
248maintain.
249
Greg Ward46b98e32000-04-14 01:53:36 +0000250Note that any pathnames (files or directories) supplied in the setup
251script should be written using the Unix convention, i.e.
252slash-separated. The Distutils will take care of converting this
Greg Ward59d382e2000-05-26 01:04:47 +0000253platform-neutral representation into whatever is appropriate on your
Greg Ward46b98e32000-04-14 01:53:36 +0000254current platform before actually using the pathname. This makes your
255setup script portable across operating systems, which of course is one
256of the major goals of the Distutils. In this spirit, all pathnames in
Greg Ward59d382e2000-05-26 01:04:47 +0000257this document are slash-separated (Mac OS programmers should keep in
258mind that the \emph{absence} of a leading slash indicates a relative
259path, the opposite of the Mac OS convention with colons).
Greg Ward46b98e32000-04-14 01:53:36 +0000260
Greg Ward16aafcd2000-04-09 04:06:44 +0000261
262\subsection{Package directories}
Greg Warde78298a2000-04-28 17:12:24 +0000263\label{package-dirs}
Greg Ward16aafcd2000-04-09 04:06:44 +0000264
265The \option{packages} option tells the Distutils to process (build,
266distribute, install, etc.) all pure Python modules found in each package
267mentioned in the \option{packages} list. In order to do this, of
268course, there has to be a correspondence between package names and
269directories in the filesystem. The default correspondence is the most
Greg Ward1ecc2512000-04-19 22:36:24 +0000270obvious one, i.e. package \module{distutils} is found in the directory
Greg Ward16aafcd2000-04-09 04:06:44 +0000271\file{distutils} relative to the distribution root. Thus, when you say
272\code{packages = ['foo']} in your setup script, you are promising that
273the Distutils will find a file \file{foo/\_\_init\_\_.py} (which might
274be spelled differently on your system, but you get the idea) relative to
275the directory where your setup script lives. (If you break this
276promise, the Distutils will issue a warning but process the broken
277package anyways.)
278
279If you use a different convention to lay out your source directory,
280that's no problem: you just have to supply the \option{package\_dir}
281option to tell the Distutils about your convention. For example, say
282you keep all Python source under \file{lib}, so that modules not in any
Greg Ward1ecc2512000-04-19 22:36:24 +0000283package are right in \file{lib}, modules in the \module{foo} package
Greg Ward16aafcd2000-04-09 04:06:44 +0000284are in \file{lib/foo}, and so forth. Then you would put
285\begin{verbatim}
286package_dir = {'': 'lib'}
287\end{verbatim}
288in your setup script. (The keys to this dictionary are package names,
289and an empty package name stands for the ``root package,'' i.e. no
290package at all. The values are directory names relative to your
291distribution root.) In this case, when you say
292\code{packages = ['foo']}, you are promising that the file
293\file{lib/foo/\_\_init\_\_.py} exists.
294
Greg Ward1ecc2512000-04-19 22:36:24 +0000295Another possible convention is to put the \module{foo} package right in
296\file{lib}, the \module{foo.bar} package in \file{lib/bar}, etc. This
Greg Ward16aafcd2000-04-09 04:06:44 +0000297would be written in the setup script as
298\begin{verbatim}
299package_dir = {'foo': 'lib'}
300\end{verbatim}
Greg Ward59d382e2000-05-26 01:04:47 +0000301A \code{\var{package}: \var{dir}} entry in the \option{package\_dir}
302dictionary implicitly applies to all packages below \var{package}, so
303the \module{foo.bar} case is automatically handled here. In this
304example, having \code{packages = ['foo', 'foo.bar']} tells the Distutils
305to look for \file{lib/\_\_init\_\_.py} and
306\file{lib/bar/\_\_init\_\_.py}. (Keep in mind that although
307\option{package\_dir} applies recursively, you must explicitly list all
308packages in \option{packages}: the Distutils will \emph{not} recursively
309scan your source tree looking for any directory with an
310\file{\_\_init\_\_.py} file.)
Greg Ward16aafcd2000-04-09 04:06:44 +0000311
312
313\subsection{Listing individual modules}
Greg Warde78298a2000-04-28 17:12:24 +0000314\label{listing-modules}
Greg Ward16aafcd2000-04-09 04:06:44 +0000315
316For a small module distribution, you might prefer to list all modules
317rather than listing packages---especially the case of a single module
318that goes in the ``root package'' (i.e., no package at all). This
Greg Warde78298a2000-04-28 17:12:24 +0000319simplest case was shown in section~\ref{simple-example}; here is a
Greg Ward16aafcd2000-04-09 04:06:44 +0000320slightly more involved example:
321\begin{verbatim}
322py_modules = ['mod1', 'pkg.mod2']
323\end{verbatim}
324This describes two modules, one of them in the ``root'' package, the
Greg Wardd5767a52000-04-19 22:48:09 +0000325other in the \module{pkg} package. Again, the default package/directory
326layout implies that these two modules can be found in \file{mod1.py} and
327\file{pkg/mod2.py}, and that \file{pkg/\_\_init\_\_.py} exists as well.
328And again, you can override the package/directory layout using the
Greg Ward59d382e2000-05-26 01:04:47 +0000329\option{package\_dir} option.
330
331
332\subsection{Describing extension modules}
333\label{sec:describing-extensions}
334
335\XXX{be sure to describe the whole \code{build\_info} dict, including
336 \code{extra\_compile\_args} and \code{extra\_link\_args}}
Greg Ward16aafcd2000-04-09 04:06:44 +0000337
338
339\section{Writing the Setup Configuration File}
Greg Warde78298a2000-04-28 17:12:24 +0000340\label{setup-config}
Greg Ward16aafcd2000-04-09 04:06:44 +0000341
342\XXX{not implemented yet!}
343
344Often, it's not possible to write down everything needed to build a
345distribution \emph{a priori}. You need to get some information from the
346user, or from the user's system, in order to proceed. For example, you
347might include an optional extension module that provides an interface to
348a particular C library. If that library is installed on the user's
349system, then you can build your optional extension---but you need to
350know where to find the header and library file. If it's not installed,
351you need to know this so you can omit your optional extension.
352
353The preferred way to do this, of course, would be for you to tell the
354Distutils which optional features (C libraries, system calls, external
355utilities, etc.) you're looking for, and it would inspect the user's
356system and try to find them. This functionality may appear in a future
357version of the Distutils, but it isn't there now. So, for the time
358being, we rely on the user building and installing your software to
359provide the necessary information. The vehicle for doing so is the
360setup configuration file, \file{setup.cfg}.
361
362\XXX{need more here!}
363
364
365\section{Creating a Source Distribution}
Greg Warde78298a2000-04-28 17:12:24 +0000366\label{source-dist}
Greg Ward16aafcd2000-04-09 04:06:44 +0000367
Greg Warde78298a2000-04-28 17:12:24 +0000368As shown in section~\ref{simple-example}, you use the
Greg Ward16aafcd2000-04-09 04:06:44 +0000369\command{sdist} command to create a source distribution. In the
370simplest case,
371\begin{verbatim}
372python setup.py sdist
373\end{verbatim}
374(assuming you haven't specified any \command{sdist} options in the setup
375script or config file), \command{sdist} creates the the archive of the
376default format for the current platform. The default formats are:
377\begin{tableii}{ll}{textrm}%
378 {Platform}{Default archive format for source distributions}
379 \lineii{Unix}{gzipped tar file (\file{.tar.gz})}
380 \lineii{Windows}{zip file}
381\end{tableii}
Greg Wardd5767a52000-04-19 22:48:09 +0000382You can specify as many formats as you like using the
383\longprogramopt{formats} option, for example:
Greg Ward16aafcd2000-04-09 04:06:44 +0000384\begin{verbatim}
385python setup.py sdist --formats=gztar,zip
386\end{verbatim}
387to create a gzipped tarball and a zip file. The available formats are:
Greg Ward46b98e32000-04-14 01:53:36 +0000388\begin{tableiii}{l|l|c}{code}%
389 {Format}{Description}{Notes}
390 \lineiii{zip}{zip file (\file{.zip})}{(1)}
391 \lineiii{gztar}{gzipped tar file (\file{.tar.gz})}{(2)}
392 \lineiii{ztar}{compressed tar file (\file{.tar.Z})}{}
393 \lineiii{tar}{tar file (\file{.tar})}{}
394\end{tableiii}
395
396\noindent Notes:
397\begin{description}
398\item[(1)] default on Windows
399\item[(2)] default on Unix
400\end{description}
Greg Ward16aafcd2000-04-09 04:06:44 +0000401
402
403\subsection{The manifest and manifest template}
Greg Warde78298a2000-04-28 17:12:24 +0000404\label{manifest}
Greg Ward16aafcd2000-04-09 04:06:44 +0000405
406Without any additional information, the \command{sdist} command puts a
407minimal set of files into the source distribution:
408\begin{itemize}
Greg Wardfacb8db2000-04-09 04:32:40 +0000409\item all Python source files implied by the \option{py\_modules} and
Greg Ward16aafcd2000-04-09 04:06:44 +0000410 \option{packages} options
Greg Wardfacb8db2000-04-09 04:32:40 +0000411\item all C source files mentioned in the \option{ext\_modules} or
Greg Ward16aafcd2000-04-09 04:06:44 +0000412 \option{libraries} options (\XXX{getting C library sources currently
Greg Wardfacb8db2000-04-09 04:32:40 +0000413 broken -- no get\_source\_files() method in build\_clib.py!})
Greg Ward16aafcd2000-04-09 04:06:44 +0000414\item anything that looks like a test script: \file{test/test*.py}
415 (currently, the Distutils don't do anything with test scripts except
416 include them in source distributions, but in the future there will be
417 a standard for testing Python module distributions)
418\item \file{README.txt} (or \file{README}) and \file{setup.py}
419\end{itemize}
420Sometimes this is enough, but usually you will want to specify
421additional files to distribute. The typical way to do this is to write
422a \emph{manifest template}, called \file{MANIFEST.in} by default. The
423\command{sdist} command processes this template and generates a manifest
424file, \file{MANIFEST}. (If you prefer, you can skip the manifest
425template and generate the manifest yourself: it just lists one file per
426line.)
427
428The manifest template has one command per line, where each command
429specifies a set of files to include or exclude from the source
430distribution. For an example, again we turn to the Distutils' own
431manifest template:
432\begin{verbatim}
433include *.txt
Greg Ward87da1ea2000-04-21 04:35:25 +0000434recursive-include examples *.txt *.py
Greg Ward16aafcd2000-04-09 04:06:44 +0000435prune examples/sample?/build
436\end{verbatim}
437The meanings should be fairly clear: include all files in the
438distribution root matching \code{*.txt}, all files anywhere under the
439\file{examples} directory matching \code{*.txt} or \code{*.py}, and
440exclude all directories matching \code{examples/sample?/build}. There
441are several other commands available in the manifest template
Greg Warde78298a2000-04-28 17:12:24 +0000442mini-language; see section~\ref{sdist-cmd}.
Greg Ward16aafcd2000-04-09 04:06:44 +0000443
444The order of commands in the manifest template very much matters:
445initially, we have the list of default files as described above, and
446each command in the template adds to or removes from that list of files.
447When we have fully processed the manifest template, we have our complete
448list of files. This list is written to the manifest for future
449reference, and then used to build the source distribution archive(s).
450
Greg Ward46b98e32000-04-14 01:53:36 +0000451Following the Distutils' own manifest template, let's trace how the
452\command{sdist} command will build the list of files to include in the
453Distutils source distribution:
Greg Ward16aafcd2000-04-09 04:06:44 +0000454\begin{enumerate}
455\item include all Python source files in the \file{distutils} and
456 \file{distutils/command} subdirectories (because packages
457 corresponding to those two directories were mentioned in the
458 \option{packages} option in the setup script)
459\item include \file{test/test*.py} (always included)
460\item include \file{README.txt} and \file{setup.py} (always included)
461\item include \file{*.txt} in the distribution root (this will find
462 \file{README.txt} a second time, but such redundancies are weeded out
463 later)
464\item in the sub-tree under \file{examples}, include anything matching
465 \file{*.txt}
466\item in the sub-tree under \file{examples}, include anything matching
467 \file{*.py}
468\item remove all files in the sub-trees starting at directories matching
469 \file{examples/sample?/build}---this may exclude files included by the
470 previous two steps, so it's important that the \code{prune} command in
471 the manifest template comes after the two \code{recursive-include}
472 commands
Greg Wardfacb8db2000-04-09 04:32:40 +0000473\end{enumerate}
Greg Ward16aafcd2000-04-09 04:06:44 +0000474
Greg Ward46b98e32000-04-14 01:53:36 +0000475Just like in the setup script, file and directory names in the manifest
476template should always be slash-separated; the Distutils will take care
477of converting them to the standard representation on your platform.
478That way, the manifest template is portable across operating systems.
479
Greg Ward16aafcd2000-04-09 04:06:44 +0000480
481\subsection{Manifest-related options}
Greg Warde78298a2000-04-28 17:12:24 +0000482\label{manifest-options}
Greg Ward16aafcd2000-04-09 04:06:44 +0000483
484The normal course of operations for the \command{sdist} command is as
485follows:
486\begin{itemize}
Greg Ward46b98e32000-04-14 01:53:36 +0000487\item if the manifest file, \file{MANIFEST} doesn't exist, read
488 \file{MANIFEST.in} and create the manifest
489\item if \file{MANIFEST.in} is more recent than \file{MANIFEST},
490 recreate \file{MANIFEST} by reading \file{MANIFEST.in}
Greg Ward16aafcd2000-04-09 04:06:44 +0000491\item use the list of files now in \file{MANIFEST} (either just
492 generated or read in) to create the source distribution archive(s)
493\end{itemize}
494There are a couple of options that modify this behaviour.
495
496First, you might want to force the manifest to be regenerated---for
497example, if you have added or removed files or directories that match an
498existing pattern in the manifest template, you should regenerate the
499manifest:
500\begin{verbatim}
501python setup.py sdist --force-manifest
502\end{verbatim}
503\XXX{this is stupid, but is there a better way to do it without
504 reprocessing MANIFEST.in every single bloody time?}
505
506Or, you might just want to (re)generate the manifest, but not create a
507source distribution:
508\begin{verbatim}
509python setup.py sdist --manifest-only
510\end{verbatim}
Greg Warda021aca2000-04-19 22:34:11 +0000511(\longprogramopt{manifest-only} implies \longprogramopt{force-manifest}.)
Greg Ward16aafcd2000-04-09 04:06:44 +0000512
513If you don't want to use the default file set, you can supply the
Greg Wardd5767a52000-04-19 22:48:09 +0000514\longprogramopt{no-defaults} option. If you use
515\longprogramopt{no-defaults} and don't supply a manifest template (or
516it's empty, or nothing matches the patterns in it), then your source
517distribution will be empty.
Greg Ward16aafcd2000-04-09 04:06:44 +0000518
519
520\section{Creating Built Distributions}
Greg Warde78298a2000-04-28 17:12:24 +0000521\label{built-dist}
Greg Ward16aafcd2000-04-09 04:06:44 +0000522
Greg Ward46b98e32000-04-14 01:53:36 +0000523A ``built distribution'' is what you're probably used to thinking of
524either as a ``binary package'' or an ``installer'' (depending on your
525background). It's not necessarily binary, though, because it might
526contain only Python source code and/or byte-code; and we don't call it a
527package, because that word is already spoken for in Python. (And
528``installer'' is a term specific to the Windows world. \XXX{do Mac
529 people use it?})
Greg Ward16aafcd2000-04-09 04:06:44 +0000530
Greg Ward46b98e32000-04-14 01:53:36 +0000531A built distribution is how you make life as easy as possible for
532installers of your module distribution: for users of RPM-based Linux
533systems, it's a binary RPM; for Windows users, it's an executable
534installer; for Debian-based Linux users, it's a Debian package; and so
535forth. Obviously, no one person will be able to create built
536distributions for every platform under the sun, so the Distutils is
537designed to enable module developers to concentrate on their
538specialty---writing code and creating source distributions---while an
539intermediary species of \emph{packager} springs up to turn source
540distributions into build distributions for as many platforms as there
541are packagers.
542
543Of course, the module developer could be his own packager; or the
544packager could be a volunteer ``out there'' somewhere who has access to
545a platform which the original developer does not; or it could be
546software periodically grabbing new source distributions and turning them
547into built distributions for as many platforms as the software has
548access to. Regardless of the nature of the beast, a packager uses the
549setup script and the \command{bdist} command family to generate built
550distributions.
551
552As a simple example, if I run the following command in the Distutils
553source tree:
554\begin{verbatim}
555python setup.py bdist
556\end{verbatim}
557then the Distutils builds my module distribution (the Distutils itself
558in this case), does a ``fake'' installation (also in the \file{build}
559directory), and creates the default type of built distribution for my
560platform. In Distutils 0.8, only two types of built distribution are
561supported: \code{gztar} (default on non-Linux Unix) and \code{zip}
562(default on Windows). Thus, the above command on a Unix system creates
563\file{Distutils-0.8.built-posix.tar.gz}; unpacking this tarball from
564Python's \filevar{prefix} directory installs the Distutils just as
565though you had downloaded the source distribution and run \code{python
566 setup.py install}. Obviously, for pure Python distributions, this
567isn't a huge win---but for non-pure distributions, which include
568extensions that would need to be compiled, it can mean the difference
569between someone being able to use your extensions or not.
570
571\XXX{filenames are inaccurate here!}
572
Greg Wardd5767a52000-04-19 22:48:09 +0000573The \command{bdist} command has a \longprogramopt{format} option,
574similar to the \command{sdist} command, that you can use to select which
575formats to generate: for example,
Greg Ward46b98e32000-04-14 01:53:36 +0000576\begin{verbatim}
577python setup.py bdist --format=zip
578\end{verbatim}
579would, when run on a Unix system, create
580\file{Distutils-0.8.built-posix.tar.gz}---again, this archive would be
581unpacked from Python's \filevar{prefix} directory to install the
582Distutils.
583
584The available formats for built distributions are:
585\begin{tableiii}{l|l|c}{code}%
586 {Format}{Description}{Notes}
587 \lineiii{zip}{zip file (\file{.zip})}{(1)}
588 \lineiii{gztar}{gzipped tar file (\file{.tar.gz})}{(2)}
589 \lineiii{ztar}{compressed tar file (\file{.tar.Z})}{}
590 \lineiii{tar}{tar file (\file{.tar})}{}
591 \lineiii{rpm}{RPM}{(3)}
592 \lineiii{srpm}{source RPM}{}
593 \lineiii{wise}{Wise installer for Windows}{}
594\end{tableiii}
595
596\noindent Notes:
597\begin{description}
598\item[(1)] default on Windows
599\item[(2)] default on Unix
600\item[(3)] not implemented yet; will be default on RPM-based Linux
601 systems
602\item[(5)] not implemented yet; will be default on Windows
603\end{description}
604
605You don't have to use the \command{bdist} command with the
Greg Wardd5767a52000-04-19 22:48:09 +0000606\longprogramopt{formats} option; you can also use the command that
607directly implements the format you're interested in. Many of these
Greg Ward46b98e32000-04-14 01:53:36 +0000608\command{bdist} ``sub-commands'' actually generate several similar
609formats; for instance, the \command{bdist\_dumb} command generates all
610the ``dumb'' archive formats (\code{tar}, \code{ztar}, \code{gztar}, and
611\code{zip}), and \command{bdist\_rpm} generates both binary and source
612RPMs. The \command{bdist} sub-commands, and the formats generated by
613each, are:
614\begin{tableii}{l|l}{command}%
615 {Command}{Formats}
616 \lineii{bdist\_dumb}{tar, ztar, gztar, zip}
617 \lineii{bdist\_rpm}{rpm, srpm}
618 \lineii{bdist\_wise}{wise}
619\end{tableii}
Greg Ward16aafcd2000-04-09 04:06:44 +0000620
621\section{Examples}
Greg Warde78298a2000-04-28 17:12:24 +0000622\label{examples}
Greg Ward16aafcd2000-04-09 04:06:44 +0000623
624
625\subsection{Pure Python distribution (by module)}
Greg Warde78298a2000-04-28 17:12:24 +0000626\label{pure-mod}
Greg Ward16aafcd2000-04-09 04:06:44 +0000627
628
629\subsection{Pure Python distribution (by package)}
Greg Warde78298a2000-04-28 17:12:24 +0000630\label{pure-pkg}
Greg Ward16aafcd2000-04-09 04:06:44 +0000631
632
633\subsection{Single extension module}
Greg Warde78298a2000-04-28 17:12:24 +0000634\label{single-ext}
Greg Ward16aafcd2000-04-09 04:06:44 +0000635
636
637\subsection{Multiple extension modules}
Greg Warde78298a2000-04-28 17:12:24 +0000638\label{multiple-ext}
Greg Ward16aafcd2000-04-09 04:06:44 +0000639
640
641\subsection{Putting it all together}
642
643
Greg Ward4a9e7222000-04-25 02:57:36 +0000644
645\section{Extending the Distutils}
Greg Warde78298a2000-04-28 17:12:24 +0000646\label{extending}
Greg Ward4a9e7222000-04-25 02:57:36 +0000647
648
649\subsection{Extending existing commands}
Greg Warde78298a2000-04-28 17:12:24 +0000650\label{extend-existing}
Greg Ward4a9e7222000-04-25 02:57:36 +0000651
652
653\subsection{Writing new commands}
Greg Warde78298a2000-04-28 17:12:24 +0000654\label{new-commands}
Greg Ward4a9e7222000-04-25 02:57:36 +0000655
656
657
Greg Ward16aafcd2000-04-09 04:06:44 +0000658\section{Reference}
Greg Warde78298a2000-04-28 17:12:24 +0000659\label{ref}
Greg Ward16aafcd2000-04-09 04:06:44 +0000660
661
Greg Wardfacb8db2000-04-09 04:32:40 +0000662\subsection{Building modules: the \protect\command{build} command family}
Greg Warde78298a2000-04-28 17:12:24 +0000663\label{build-cmds}
Greg Ward16aafcd2000-04-09 04:06:44 +0000664
Greg Wardfacb8db2000-04-09 04:32:40 +0000665\subsubsection{\protect\command{build}}
Greg Warde78298a2000-04-28 17:12:24 +0000666\label{build-cmd}
Greg Ward16aafcd2000-04-09 04:06:44 +0000667
Greg Wardfacb8db2000-04-09 04:32:40 +0000668\subsubsection{\protect\command{build\_py}}
Greg Warde78298a2000-04-28 17:12:24 +0000669\label{build-py-cmd}
Greg Ward16aafcd2000-04-09 04:06:44 +0000670
Greg Wardfacb8db2000-04-09 04:32:40 +0000671\subsubsection{\protect\command{build\_ext}}
Greg Warde78298a2000-04-28 17:12:24 +0000672\label{build-ext-cmd}
Greg Ward16aafcd2000-04-09 04:06:44 +0000673
Greg Wardfacb8db2000-04-09 04:32:40 +0000674\subsubsection{\protect\command{build\_clib}}
Greg Warde78298a2000-04-28 17:12:24 +0000675\label{build-clib-cmd}
Greg Ward16aafcd2000-04-09 04:06:44 +0000676
677
Greg Wardfacb8db2000-04-09 04:32:40 +0000678\subsection{Installing modules: the \protect\command{install} command family}
Greg Warde78298a2000-04-28 17:12:24 +0000679\label{install-cmd}
Greg Ward16aafcd2000-04-09 04:06:44 +0000680
Gregory P. Smith147e5f32000-05-12 00:58:18 +0000681The install command ensures that the build commands have been run and then
682runs the subcommands \command{install\_lib},
683\command{install\_data} and
684\command{install\_scripts}.
685
686\subsubsection{\protect\command{install\_lib}}
687\label{sec:install-lib-cmd}
688
689\subsubsection{\protect\command{install\_data}}
690\label{sec:install-data-cmd}
691This command installs all data files provided with the distribution.
692
693\subsubsection{\protect\command{install\_scripts}}
694\label{sec:install-scripts-cmd}
695This command installs all (Python) scripts in the distribution.
696
Greg Ward16aafcd2000-04-09 04:06:44 +0000697
Greg Wardfacb8db2000-04-09 04:32:40 +0000698\subsection{Cleaning up: the \protect\command{clean} command}
Greg Warde78298a2000-04-28 17:12:24 +0000699\label{clean-cmd}
Greg Ward16aafcd2000-04-09 04:06:44 +0000700
701
Greg Wardfacb8db2000-04-09 04:32:40 +0000702\subsection{Creating a source distribution: the \protect\command{sdist} command}
Greg Warde78298a2000-04-28 17:12:24 +0000703\label{sdist-cmd}
Greg Ward16aafcd2000-04-09 04:06:44 +0000704
705
706\XXX{fragment moved down from above: needs context!}
707The manifest template commands are:
708\begin{tableii}{ll}{command}{Command}{Description}
Greg Ward87da1ea2000-04-21 04:35:25 +0000709 \lineii{include \var{pat1} \var{pat2} ... }
710 {include all files matching any of the listed patterns}
711 \lineii{exclude \var{pat1} \var{pat2} ... }
712 {exclude all files matching any of the listed patterns}
713 \lineii{recursive-include \var{dir} \var{pat1} \var{pat2} ... }
714 {include all files under \var{dir} matching any of the listed patterns}
715 \lineii{recursive-exclude \var{dir} \var{pat1} \var{pat2} ...}
716 {exclude all files under \var{dir} matching any of the listed patterns}
717 \lineii{global-include \var{pat1} \var{pat2} ...}
718 {include all files anywhere in the source tree matching
719 any of the listed patterns}
720 \lineii{global-exclude \var{pat1} \var{pat2} ...}
721 {exclude all files anywhere in the source tree matching
722 any of the listed patterns}
Greg Ward16aafcd2000-04-09 04:06:44 +0000723 \lineii{prune \var{dir}}{exclude all files under \var{dir}}
724 \lineii{graft \var{dir}}{include all files under \var{dir}}
725\end{tableii}
726The patterns here are Unix-style ``glob'' patterns: \code{*} matches any
727sequence of regular filename characters, \code{?} matches any single
728regular filename character, and \code{[\var{range}]} matches any of the
729characters in \var{range} (e.g., \code{a-z}, \code{a-zA-Z},
Greg Wardfacb8db2000-04-09 04:32:40 +0000730\code{a-f0-9\_.}). The definition of ``regular filename character'' is
Greg Ward16aafcd2000-04-09 04:06:44 +0000731platform-specific: on Unix it is anything except slash; on Windows
732anything except backslash or colon; on Mac OS anything except colon.
733\XXX{Windows and Mac OS support not there yet}
734
735
Greg Wardd5767a52000-04-19 22:48:09 +0000736\subsection{Creating a ``built'' distribution: the
737 \protect\command{bdist} command family}
Greg Warde78298a2000-04-28 17:12:24 +0000738\label{bdist-cmds}
Greg Ward16aafcd2000-04-09 04:06:44 +0000739
740
Greg Wardfacb8db2000-04-09 04:32:40 +0000741\subsubsection{\protect\command{blib}}
Greg Ward16aafcd2000-04-09 04:06:44 +0000742
Greg Wardfacb8db2000-04-09 04:32:40 +0000743\subsubsection{\protect\command{blib\_dumb}}
Greg Ward16aafcd2000-04-09 04:06:44 +0000744
Greg Wardfacb8db2000-04-09 04:32:40 +0000745\subsubsection{\protect\command{blib\_rpm}}
Greg Ward16aafcd2000-04-09 04:06:44 +0000746
Greg Wardfacb8db2000-04-09 04:32:40 +0000747\subsubsection{\protect\command{blib\_wise}}
Greg Ward16aafcd2000-04-09 04:06:44 +0000748
749
750
751
752
753
754
755
Greg Wardabc52162000-02-26 00:52:48 +0000756\end{document}