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author | Georg Brandl <georg@python.org> | 2007-08-15 14:28:22 (GMT) |
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committer | Georg Brandl <georg@python.org> | 2007-08-15 14:28:22 (GMT) |
commit | 116aa62bf54a39697e25f21d6cf6799f7faa1349 (patch) | |
tree | 8db5729518ed4ca88e26f1e26cc8695151ca3eb3 /Doc/distutils/examples.rst | |
parent | 739c01d47b9118d04e5722333f0e6b4d0c8bdd9e (diff) | |
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Move the 3k reST doc tree in place.
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-rw-r--r-- | Doc/distutils/examples.rst | 241 |
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diff --git a/Doc/distutils/examples.rst b/Doc/distutils/examples.rst new file mode 100644 index 0000000..4e4adc5 --- /dev/null +++ b/Doc/distutils/examples.rst @@ -0,0 +1,241 @@ +.. _examples: + +******** +Examples +******** + +This chapter provides a number of basic examples to help get started with +distutils. Additional information about using distutils can be found in the +Distutils Cookbook. + + +.. seealso:: + + `Distutils Cookbook <http://www.python.org/cgi-bin/moinmoin/DistutilsCookbook>`_ + Collection of recipes showing how to achieve more control over distutils. + + +.. _pure-mod: + +Pure Python distribution (by module) +==================================== + +If you're just distributing a couple of modules, especially if they don't live +in a particular package, you can specify them individually using the +:option:`py_modules` option in the setup script. + +In the simplest case, you'll have two files to worry about: a setup script and +the single module you're distributing, :file:`foo.py` in this example:: + + <root>/ + setup.py + foo.py + +(In all diagrams in this section, *<root>* will refer to the distribution root +directory.) A minimal setup script to describe this situation would be:: + + from distutils.core import setup + setup(name='foo', + version='1.0', + py_modules=['foo'], + ) + +Note that the name of the distribution is specified independently with the +:option:`name` option, and there's no rule that says it has to be the same as +the name of the sole module in the distribution (although that's probably a good +convention to follow). However, the distribution name is used to generate +filenames, so you should stick to letters, digits, underscores, and hyphens. + +Since :option:`py_modules` is a list, you can of course specify multiple +modules, eg. if you're distributing modules :mod:`foo` and :mod:`bar`, your +setup might look like this:: + + <root>/ + setup.py + foo.py + bar.py + +and the setup script might be :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + py_modules=['foo', 'bar'], + ) + +You can put module source files into another directory, but if you have enough +modules to do that, it's probably easier to specify modules by package rather +than listing them individually. + + +.. _pure-pkg: + +Pure Python distribution (by package) +===================================== + +If you have more than a couple of modules to distribute, especially if they are +in multiple packages, it's probably easier to specify whole packages rather than +individual modules. This works even if your modules are not in a package; you +can just tell the Distutils to process modules from the root package, and that +works the same as any other package (except that you don't have to have an +:file:`__init__.py` file). + +The setup script from the last example could also be written as :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + packages=[''], + ) + +(The empty string stands for the root package.) + +If those two files are moved into a subdirectory, but remain in the root +package, e.g.:: + + <root>/ + setup.py + src/ foo.py + bar.py + +then you would still specify the root package, but you have to tell the +Distutils where source files in the root package live:: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + package_dir={'': 'src'}, + packages=[''], + ) + +More typically, though, you will want to distribute multiple modules in the same +package (or in sub-packages). For example, if the :mod:`foo` and :mod:`bar` +modules belong in package :mod:`foobar`, one way to layout your source tree is +:: + + <root>/ + setup.py + foobar/ + __init__.py + foo.py + bar.py + +This is in fact the default layout expected by the Distutils, and the one that +requires the least work to describe in your setup script:: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + packages=['foobar'], + ) + +If you want to put modules in directories not named for their package, then you +need to use the :option:`package_dir` option again. For example, if the +:file:`src` directory holds modules in the :mod:`foobar` package:: + + <root>/ + setup.py + src/ + __init__.py + foo.py + bar.py + +an appropriate setup script would be :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + package_dir={'foobar': 'src'}, + packages=['foobar'], + ) + +Or, you might put modules from your main package right in the distribution +root:: + + <root>/ + setup.py + __init__.py + foo.py + bar.py + +in which case your setup script would be :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + package_dir={'foobar': ''}, + packages=['foobar'], + ) + +(The empty string also stands for the current directory.) + +If you have sub-packages, they must be explicitly listed in :option:`packages`, +but any entries in :option:`package_dir` automatically extend to sub-packages. +(In other words, the Distutils does *not* scan your source tree, trying to +figure out which directories correspond to Python packages by looking for +:file:`__init__.py` files.) Thus, if the default layout grows a sub-package:: + + <root>/ + setup.py + foobar/ + __init__.py + foo.py + bar.py + subfoo/ + __init__.py + blah.py + +then the corresponding setup script would be :: + + from distutils.core import setup + setup(name='foobar', + version='1.0', + packages=['foobar', 'foobar.subfoo'], + ) + +(Again, the empty string in :option:`package_dir` stands for the current +directory.) + + +.. _single-ext: + +Single extension module +======================= + +Extension modules are specified using the :option:`ext_modules` option. +:option:`package_dir` has no effect on where extension source files are found; +it only affects the source for pure Python modules. The simplest case, a +single extension module in a single C source file, is:: + + <root>/ + setup.py + foo.c + +If the :mod:`foo` extension belongs in the root package, the setup script for +this could be :: + + from distutils.core import setup + from distutils.extension import Extension + setup(name='foobar', + version='1.0', + ext_modules=[Extension('foo', ['foo.c'])], + ) + +If the extension actually belongs in a package, say :mod:`foopkg`, then + +With exactly the same source tree layout, this extension can be put in the +:mod:`foopkg` package simply by changing the name of the extension:: + + from distutils.core import setup + from distutils.extension import Extension + setup(name='foobar', + version='1.0', + ext_modules=[Extension('foopkg.foo', ['foo.c'])], + ) + +.. % \section{Multiple extension modules} +.. % \label{multiple-ext} + +.. % \section{Putting it all together} + + |