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doc/building.rst
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doc/building.rst
@@ -7,7 +7,7 @@
|
||||
|(logo)|__ Boost.Python Build and Test HOWTO
|
||||
==============================================
|
||||
|
||||
.. |(logo)| image:: ../boost.png
|
||||
.. |(logo)| image:: ../../../boost.png
|
||||
:alt: Boost C++ Libraries:
|
||||
:class: boost-logo
|
||||
|
||||
@@ -31,36 +31,6 @@ Boost.Python requires `Python 2.2`_ [#2.2]_ *or* |newer|__.
|
||||
.. _Python 2.2: http://www.python.org/2.2
|
||||
__ http://www.python.org
|
||||
|
||||
No-Install Quickstart
|
||||
=====================
|
||||
|
||||
There is no need to install Boost in order to get started using
|
||||
Boost.Python. These instructions use Boost.Build_ projects,
|
||||
which will build those binaries as soon as they're needed. Your
|
||||
first tests may take a little longer while you wait for
|
||||
Boost.Python to build, but doing things this way will save you from
|
||||
worrying about build intricacies like which library binaries to use
|
||||
for a specific compiler configuration.
|
||||
|
||||
.. Note:: Of course it's possible to use other build systems to
|
||||
build Boost.Python and its extensions, but they are not
|
||||
officially supported by Boost. Moreover **99% of all “I can't
|
||||
build Boost.Python” problems come from trying to use another
|
||||
build system**.
|
||||
|
||||
If you want to use another system anyway, we suggest that you
|
||||
follow these instructions, and then invoke ``bjam`` with the
|
||||
``-a -o``\ *filename* option to dump the build commands it executes
|
||||
to a file, so you can see what your build system needs to do.
|
||||
|
||||
1. Get Boost; see sections 1 and 2 of the Boost `Getting Started Guide`_.
|
||||
2. Get the ``bjam`` build driver. See sections 5.2.1-5.2.3 of the
|
||||
Boost `Getting Started Guide`_.
|
||||
3. cd into the ``libs/python/test/example`` directory.
|
||||
|
||||
.. _Getting Started Guide: ../../../more/getting_started/index.html
|
||||
|
||||
|
||||
Background
|
||||
==========
|
||||
|
||||
@@ -81,7 +51,7 @@ There are two basic models for combining C++ and Python:
|
||||
.. _embedding: http://www.python.org/doc/current/ext/embedding.html
|
||||
|
||||
The key distinction between extending and embedding is the location
|
||||
of C++' ``main()`` function: in the Python interpreter executable,
|
||||
of the C++ ``main()`` function: in the Python interpreter executable,
|
||||
or in some other program, respectively. Note that even when
|
||||
embedding Python in another program, `extension modules are often
|
||||
the best way to make C/C++ functionality accessible to Python
|
||||
@@ -95,8 +65,252 @@ dynamically-loaded libraries with a single entry point, which means
|
||||
you can change them without rebuilding either the other extension
|
||||
modules or the executable containing ``main()``.
|
||||
|
||||
Getting Boost.Python Binaries
|
||||
=============================
|
||||
No-Install Quickstart
|
||||
=====================
|
||||
|
||||
There is no need to “install Boost” in order to get started using
|
||||
Boost.Python. These instructions use Boost.Build_ projects,
|
||||
which will build those binaries as soon as they're needed. Your
|
||||
first tests may take a little longer while you wait for
|
||||
Boost.Python to build, but doing things this way will save you from
|
||||
worrying about build intricacies like which library binaries to use
|
||||
for a specific compiler configuration and figuring out the right
|
||||
compiler options to use yourself.
|
||||
|
||||
.. .. raw:: html
|
||||
|
||||
<div style="width:50%">
|
||||
|
||||
.. Note:: Of course it's possible to use other build systems to
|
||||
build Boost.Python and its extensions, but they are not
|
||||
officially supported by Boost. Moreover **99% of all “I can't
|
||||
build Boost.Python” problems come from trying to use another
|
||||
build system** without first following these instructions.
|
||||
|
||||
If you want to use another system anyway, we suggest that you
|
||||
follow these instructions, and then invoke ``bjam`` with the
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
``-a -o``\ *filename*
|
||||
|
||||
options to dump the build commands it executes to a file, so
|
||||
you can see what your alternate build system needs to do.
|
||||
|
||||
.. .. raw:: html
|
||||
|
||||
</div>
|
||||
|
||||
.. _Boost.Build: ../../../tools/build/index.html
|
||||
|
||||
Basic Procedure
|
||||
---------------
|
||||
|
||||
1. Get Boost; see sections 1 and 2 [`Unix/Linux`__, `Windows`__\ ] of the
|
||||
Boost `Getting Started Guide`_.
|
||||
|
||||
__ ../../../more/getting_started/unix-variants.html#get-boost
|
||||
__ ../../../more/getting_started/windows.html#get-boost
|
||||
|
||||
2. Get the ``bjam`` build driver. See section 5 [`Unix/Linux`__,
|
||||
`Windows`__\ ] of the Boost `Getting Started Guide`_.
|
||||
|
||||
__ ../../../more/getting_started/unix-variants.html#prepare-to-use-a-boost-library-binary
|
||||
__ ../../../more/getting_started/windows.html#prepare-to-use-a-boost-library-binary
|
||||
|
||||
|
||||
3. cd into the ``libs/python/example/quickstart/`` directory of your
|
||||
Boost installation, which contains a small example project.
|
||||
|
||||
4. Invoke ``bjam``. Replace the “\ ``stage``\ “ argument from the
|
||||
example invocation from section 5 of the `Getting Started
|
||||
Guide`_ with “\ ``test``\ ,“ to build all the test targets. Also add
|
||||
the argument “\ ``--verbose-test``\ ” to see the output generated by
|
||||
the tests when they are run.
|
||||
|
||||
On Windows, your ``bjam`` invocation might look something like:
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
C:\\boost_1_34_0\\…\\quickstart> **bjam toolset=msvc --verbose-test test**
|
||||
|
||||
and on Unix variants, perhaps,
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
~/boost_1_34_0/…/quickstart$ **bjam toolset=gcc --verbose-test test**
|
||||
|
||||
.. Admonition:: Note to Windows Users
|
||||
|
||||
For the sake of concision, the rest of this guide will use
|
||||
unix-style forward slashes in pathnames instead of the
|
||||
backslashes with which you may be more familiar. The forward
|
||||
slashes should work everywhere except in `Command Prompt`_
|
||||
windows, where you should use backslashes.
|
||||
|
||||
.. _Command Prompt: ../../../more/getting_started/windows.html#command-prompt
|
||||
|
||||
If you followed this procedure successfully, you will have built an
|
||||
extension module called ``extending`` and tested it by running a
|
||||
Python script called ``test_extending.py``. You will also have
|
||||
built and run a simple application called ``embedding`` that embeds
|
||||
python.
|
||||
|
||||
.. _Getting Started Guide: ../../../more/getting_started/index.html
|
||||
|
||||
In Case of Trouble
|
||||
------------------
|
||||
|
||||
If you're seeing lots of compiler and/or linker error messages,
|
||||
it's probably because Boost.Build is having trouble finding your
|
||||
Python installation. You might want to pass the
|
||||
``--debug-configuration`` option to ``bjam`` the first few times
|
||||
you invoke it, to make sure that Boost.Build is correctly locating
|
||||
all the parts of your Python installation. If it isn't, consider
|
||||
`Configuring Boost.Build`_ as detailed below.
|
||||
|
||||
If you're still having trouble, Someone on one of the following
|
||||
mailing lists may be able to help:
|
||||
|
||||
* The `Boost.Build mailing list`__ for issues related to Boost.Build
|
||||
* The Python `C++ Sig`__ for issues specifically related to Boost.Python
|
||||
|
||||
__ ../../../more/mailing_lists.htm#jamboost
|
||||
__ ../../../more/mailing_lists.htm#cplussig
|
||||
|
||||
In Case Everything Seemed to Work
|
||||
---------------------------------
|
||||
|
||||
Rejoice! If you're new to Boost.Python, at this point it might be
|
||||
a good idea to ignore build issues for a while and concentrate on
|
||||
learning the library by going through the tutorial_ and perhaps
|
||||
some of the `reference documentation`_, trying out what you've
|
||||
learned about the API by modifying the quickstart project.
|
||||
|
||||
.. _reference documentation: v2/reference.html
|
||||
.. _tutorial: tutorial/index.html
|
||||
|
||||
Modifying the Example Project
|
||||
-----------------------------
|
||||
|
||||
If you're content to keep your extension module forever in one
|
||||
source file called |extending.cpp|_, inside your Boost
|
||||
distribution, and import it forever as ``extending``, then you can
|
||||
stop here. However, it's likely that you will want to make a few
|
||||
changes. There are a few things you can do without having to learn
|
||||
Boost.Build_ in depth.
|
||||
|
||||
The project you just built is specified in two files in the current
|
||||
directory: |boost-build.jam|_, which tells ``bjam`` where it can
|
||||
find the interpreted code of the Boost build system, and
|
||||
|Jamroot|_, which describes the targets you just built. These
|
||||
files are heavily commented, so they should be easy to modify.
|
||||
Take care, however, to preserve whitespace. Punctuation such as
|
||||
``;`` will not be recognized as intended by ``bjam`` if it is not
|
||||
surrounded by whitespace.
|
||||
|
||||
.. |boost-build.jam| replace:: ``boost-build.jam``
|
||||
.. _boost-build.jam: ../example/quickstart/boost-build.jam
|
||||
|
||||
.. |Jamroot| replace:: ``Jamroot``
|
||||
.. _Jamroot: ../example/quickstart/Jamroot
|
||||
|
||||
.. |extending.cpp| replace:: ``extending.cpp``
|
||||
.. _extending.cpp: ../example/quickstart/extending.cpp
|
||||
|
||||
Relocate the Project
|
||||
....................
|
||||
|
||||
You'll probably want to copy this project elsewhere so you can
|
||||
change it without modifying your Boost distribution. To do that,
|
||||
simply
|
||||
|
||||
a. copy the entire ``libs/python/example/quickstart/`` directory
|
||||
into a new directory.
|
||||
|
||||
b. In the new copies of |boost-build.jam|_ and |Jamroot|_, locate
|
||||
the relative path near the top of the file that is clearly
|
||||
marked by a comment, and edit that path so that it refers to the
|
||||
same directory your Boost distribution as it referred to when
|
||||
the file was in its original location in the
|
||||
``libs/python/example/quickstart/`` directory.
|
||||
|
||||
For example, if you moved the project from
|
||||
``/home/dave/boost_1_34_0/libs/python/example/quickstart`` to
|
||||
``/home/dave/my-project``, you could change the first path in
|
||||
|boost-build.jam|_ from
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
**../../../..**\ /tools/build/v2
|
||||
|
||||
to
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
**/home/dave/boost_1_34_0**\ /tools/build/v2
|
||||
|
||||
and change the first path in |Jamroot|_ from
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
**../../../..**
|
||||
|
||||
to
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
**/home/dave/boost_1_34_0**
|
||||
|
||||
Add New or Change Names of Existing Source Files
|
||||
................................................
|
||||
|
||||
The names of additional source files involved in building your
|
||||
extension module or embedding application can be listed in
|
||||
|Jamroot|_ right alongside ``extending.cpp`` or ``embedding.cpp``
|
||||
respectively. Just be sure to leave whitespace around each
|
||||
filename::
|
||||
|
||||
… file1.cpp file2.cpp file3.cpp …
|
||||
|
||||
Naturally, if you want to change the name of a source file you can
|
||||
tell Boost.Build about it by editing the name in |Jamroot|_.
|
||||
|
||||
Change the Name of your Extension Module
|
||||
........................................
|
||||
|
||||
The name of the extension module is determined by two things:
|
||||
|
||||
1. the name in |Jamroot|_ immediately following ``python-extension``, and
|
||||
2. the name passed to ``BOOST_PYTHON_MODULE`` in |extending.cpp|_.
|
||||
|
||||
To change the name of the extension module from ``extending`` to
|
||||
``hello``, you'd edit |Jamroot|_, changing
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
python-extension **extending** : extending.cpp ;
|
||||
|
||||
to
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
python-extension **hello** : extending.cpp ;
|
||||
|
||||
and you'd edit extending.cpp, changing
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
BOOST_PYTHON_MODULE(\ **extending**\ )
|
||||
|
||||
to
|
||||
|
||||
.. parsed-literal::
|
||||
|
||||
BOOST_PYTHON_MODULE(\ **hello**\ )
|
||||
|
||||
Installing Boost.Python on your System
|
||||
======================================
|
||||
|
||||
Since Boost.Python is a separately-compiled (as opposed to
|
||||
`header-only`_) library, its user relies on the services of a
|
||||
@@ -104,25 +318,35 @@ Boost.Python library binary.
|
||||
|
||||
.. _header-only: ../../../more/getting_started/windows.html#header-only-libraries
|
||||
|
||||
Installing Boost.Python on your System
|
||||
--------------------------------------
|
||||
|
||||
If you need a regular, installation of the Boost.Python library
|
||||
If you need a regular installation of the Boost.Python library
|
||||
binaries on your system, the Boost `Getting Started Guide`_ will
|
||||
walk you through the steps of installing one. If building binaries
|
||||
walk you through the steps of creating one. If building binaries
|
||||
from source, you might want to supply the ``--with-python``
|
||||
argument to ``bjam`` (or the ``--with-libraries=python`` argument
|
||||
to ``configure``), so only the Boost.Python binary will be built,
|
||||
rather than all the Boost binaries.
|
||||
|
||||
.. Admonition:: Windows Users: No Auto-Link Support
|
||||
|
||||
Boost.Python does not yet support the `auto-link`_ feature, so if
|
||||
you're not using the quickstart_ method, you'll have to pay
|
||||
attention to the names of generated libraries and add extra link
|
||||
arguments not shown in the `Getting Started Guide`_ to select the
|
||||
right library.
|
||||
|
||||
.. _auto-link: ../../../more/getting_started/windows.html#link-your-program-to-a-boost-library
|
||||
|
||||
.. _quickstart: `no-install quickstart`_
|
||||
|
||||
Configuring Boost.Build
|
||||
=======================
|
||||
|
||||
As described in the `Boost.Build reference manual`__, a file called
|
||||
``user-config.jam`` in your home
|
||||
directory [#home-dir]_ is used to
|
||||
describe the build resources available to the build system. You'll
|
||||
need to tell it about your Python installation.
|
||||
``user-config.jam`` in your home directory [#home-dir]_ is used to
|
||||
specify the tools and libraries available to the build system. You
|
||||
may need to create or edit ``user-config.jam`` to tell Boost.Build
|
||||
how to invoke Python, ``#include`` its headers, and link with its
|
||||
libraries.
|
||||
|
||||
__ http://www.boost.orgdoc/html/bbv2/advanced.html#bbv2.advanced.configuration
|
||||
|
||||
@@ -135,66 +359,58 @@ __ http://www.boost.orgdoc/html/bbv2/advanced.html#bbv2.advanced.configuration
|
||||
were built, your ``user-config.jam`` file is probably already
|
||||
correct.
|
||||
|
||||
If you have a fairly “standard” python installation for your
|
||||
platform, there's very little you need to do to describe it.
|
||||
Simply having ::
|
||||
If you have one fairly “standard” python installation for your
|
||||
platform, you might not need to do anything special to describe it. If
|
||||
you haven't configured python in ``user-config.jam`` (and you don't
|
||||
specify ``--without-python`` on the Boost.Build command line),
|
||||
Boost.Build will automatically execute the equivalent of ::
|
||||
|
||||
|
||||
import toolset : using ;
|
||||
using python ;
|
||||
|
||||
in a ``user-config.jam`` file in your home directory [#home-dir]_
|
||||
should be enough. [#user-config.jam]_ For more complicated setups,
|
||||
see `Advanced Configuration`_.
|
||||
which automatically looks for Python in the most likely places.
|
||||
However, that only happens when using the Boost.Python project file
|
||||
(e.g. when referred to by another project as in the quickstart_
|
||||
method). If instead you are linking against separately-compiled
|
||||
Boost.Python binaries, you should set up a ``user-config.jam`` file
|
||||
with at least the minimal incantation above.
|
||||
|
||||
.. Note:: You might want to pass the ``--debug-configuration``
|
||||
option to ``bjam`` the first few times you invoke it, to make
|
||||
sure that Boost.Build is correctly locating all the parts of
|
||||
your Python installation. If it isn't, consider passing some of
|
||||
the optional `Python configuration parameters`_ detailed below.
|
||||
|
||||
Building an Extension Module
|
||||
============================
|
||||
|
||||
|
||||
Testing
|
||||
=======
|
||||
|
||||
|
||||
Advanced Configuration
|
||||
======================
|
||||
Python Configuration Parameters
|
||||
-------------------------------
|
||||
|
||||
If you have several versions of Python installed, or Python is
|
||||
installed in an unusual way, you may want to supply any or all of
|
||||
the following optional parameters to ``using python``.
|
||||
|
||||
Python Configuration Parameters
|
||||
-------------------------------
|
||||
|
||||
version
|
||||
the version of Python to use. Should be in Major.Minor
|
||||
format, for example, ``2.3``. Do not include the subminor
|
||||
version (i.e. *not* ``2.5.1``). If you have multiple Python
|
||||
versions installed, the version will usually be the only
|
||||
additional argument required.
|
||||
configuration argument required.
|
||||
|
||||
cmd-or-prefix
|
||||
preferably, a command that invokes a Python
|
||||
interpreter. Alternatively, the installation prefix for Python
|
||||
libraries and header files. Use the alternative formulation if
|
||||
there is no appropriate Python executable available.
|
||||
preferably, a command that invokes a Python interpreter.
|
||||
Alternatively, the installation prefix for Python libraries and
|
||||
header files. Only use the alternative formulation if there is
|
||||
no appropriate Python executable available.
|
||||
|
||||
includes
|
||||
the ``#include`` path for Python headers.
|
||||
the ``#include`` paths for Python headers. Normally the correct
|
||||
path(s) will be automatically deduced from ``version`` and/or
|
||||
``cmd-or-prefix``.
|
||||
|
||||
libraries
|
||||
the path to Python library binaries. On MacOS/Darwin,
|
||||
you can also pass the path of the Python framework.
|
||||
you can also pass the path of the Python framework. Normally the
|
||||
correct path(s) will be automatically deduced from ``version``
|
||||
and/or ``cmd-or-prefix``.
|
||||
|
||||
condition
|
||||
if specified, should be a set of Boost.Build
|
||||
properties that are matched against the build configuration when
|
||||
Boost.Build selects a Python configuration to use.
|
||||
Boost.Build selects a Python configuration to use. See examples
|
||||
below for details.
|
||||
|
||||
extension-suffix
|
||||
A string to append to the name of extension
|
||||
@@ -202,10 +418,12 @@ extension-suffix
|
||||
don't need to use this. Usually this suffix is only used when
|
||||
targeting a Windows debug build of Python, and will be set
|
||||
automatically for you based on the value of the
|
||||
``<python-debugging>`` feature. However, at least one Linux
|
||||
|python-debugging|_ feature. However, at least one Linux
|
||||
distribution (Ubuntu Feisty Fawn) has a specially configured
|
||||
`python-dbg`__ package that claims to use such a suffix.
|
||||
|
||||
.. |python-debugging| replace:: ``<python-debugging>``
|
||||
|
||||
__ https://wiki.ubuntu.com/PyDbgBuilds
|
||||
|
||||
|
||||
@@ -247,6 +465,17 @@ significant.
|
||||
: <toolset>intel # condition
|
||||
;
|
||||
|
||||
|
||||
- If you have downloaded the Python sources and built both the
|
||||
normal and the “\ `python debugging`_\ ” builds from source on
|
||||
Windows, you might see::
|
||||
|
||||
using python : 2.5 : C:\\src\\Python-2.5\\PCBuild\\python ;
|
||||
using python : 2.5 : C:\\src\\Python-2.5\\PCBuild\\python_d
|
||||
: # includes
|
||||
: # libs
|
||||
: <python-debugging>on ;
|
||||
|
||||
- You can set up your user-config.jam so a bjam built under Windows
|
||||
can build/test both Windows and Cygwin_ python extensions. Just pass
|
||||
``<target-os>cygwin`` in the ``condition`` parameter
|
||||
@@ -290,7 +519,7 @@ __ http://zigzag.cs.msu.su/boost.build/wiki/AlternativeSelection
|
||||
Choosing a Boost.Python Library Binary
|
||||
======================================
|
||||
|
||||
If—instead of letting Boost.Build construct and link withthe right
|
||||
If—instead of letting Boost.Build construct and link with the right
|
||||
libraries automatically—you choose to use a pre-built Boost.Python
|
||||
library, you'll need to think about which one to link with. The
|
||||
Boost.Python binary comes in both static and dynamic flavors. Take
|
||||
@@ -332,6 +561,64 @@ any of the following cases:
|
||||
use the types exposed by your statically-linked extension
|
||||
modules (and vice-versa).
|
||||
|
||||
``#include`` Issues
|
||||
===================
|
||||
|
||||
1. If you should ever have occasion to ``#include "python.h"``
|
||||
directly in a translation unit of a program using Boost.Python,
|
||||
use ``#include "boost/python/detail/wrap_python.hpp"`` instead.
|
||||
It handles several issues necessary for use with Boost.Python,
|
||||
one of which is mentioned in the next section.
|
||||
|
||||
2. Be sure not to ``#include`` any system headers before
|
||||
``wrap_python.hpp``. This restriction is actually imposed by
|
||||
Python, or more properly, by Python's interaction with your
|
||||
operating system. See
|
||||
http://docs.python.org/ext/simpleExample.html for details.
|
||||
|
||||
.. _python-debugging:
|
||||
.. _python debugging:
|
||||
|
||||
Python Debugging Builds
|
||||
=======================
|
||||
|
||||
Python can be built in a special “python debugging” configuration
|
||||
that adds extra checks and instrumentation that can be very useful
|
||||
for developers of extension modules. The data structures used by
|
||||
the debugging configuration contain additional members, so **a
|
||||
Python executable built with python debugging enabled cannot be
|
||||
used with an extension module or library compiled without it, and
|
||||
vice-versa.**
|
||||
|
||||
Since pre-built “python debugging” versions of the Python
|
||||
executable and libraries are not supplied with most distributions
|
||||
of Python, [#get-debug-build]_ and we didn't want to force our users
|
||||
to build them, Boost.Build does not automatically enable python
|
||||
debugging in its ``debug`` build variant (which is the default).
|
||||
Instead there is a special build property called
|
||||
``python-debugging`` that, when used as a build property, will
|
||||
define the right preprocessor symbols and select the right
|
||||
libraries to link with.
|
||||
|
||||
On unix-variant platforms, the debugging versions of Python's data
|
||||
structures will only be used if the symbol ``Py_DEBUG`` is defined.
|
||||
On many windows compilers, when extension modules are built with
|
||||
the preprocessor symbol ``_DEBUG``, Python defaults to force
|
||||
linking with a special debugging version of the Python DLL. Since
|
||||
that symbol is very commonly used even when Python is not present,
|
||||
Boost.Python temporarily undefines _DEBUG when Python.h
|
||||
is #included from ``boost/python/detail/wrap_python.hpp`` - unless
|
||||
``BOOST_DEBUG_PYTHON`` is defined. The upshot is that if you want
|
||||
“python debugging”and you aren't using Boost.Build, you should make
|
||||
sure ``BOOST_DEBUG_PYTHON`` is defined, or python debugging will be
|
||||
suppressed.
|
||||
|
||||
Testing Boost.Python
|
||||
====================
|
||||
|
||||
To run the full test suite for Boost.Python, invoke ``bjam`` in the
|
||||
``libs/python/test`` subdirectory of your Boost distribution.
|
||||
|
||||
Notes for MinGW (and Cygwin with -mno-cygwin) GCC Users
|
||||
=======================================================
|
||||
|
||||
@@ -370,8 +657,8 @@ __ http://www.python.org/doc/current/inst/index.html
|
||||
that feature.
|
||||
|
||||
.. [#toolset-specific] Because of the way most \*nix platforms
|
||||
share symbols among dynamically-loaded objects, I'm not
|
||||
certainextension modules built with different compiler toolsets
|
||||
share symbols among dynamically-loaded objects, I'm not certain
|
||||
that extension modules built with different compiler toolsets
|
||||
will always use different copies of the Boost.Python library
|
||||
when loaded into the same Python instance. Not using different
|
||||
libraries could be a good thing if the compilers have compatible
|
||||
@@ -391,14 +678,17 @@ __ http://www.python.org/doc/current/inst/index.html
|
||||
toolset, and you might need handle both explicitly if you also
|
||||
have a MinGW GCC installed.
|
||||
|
||||
.. [#user-config.jam] Create the ``user-config.jam`` file if you don't
|
||||
already have one.
|
||||
|
||||
.. [#home-dir] Windows users, your home directory can be
|
||||
found by typing::
|
||||
|
||||
ECHO %HOMEDRIVE%%HOMEPATH%
|
||||
|
||||
into a `Windows command prompt`__
|
||||
into a `command prompt`_ window.
|
||||
|
||||
__ ../../../more/getting_started/windows.html#or-build-from-the-command-prompt
|
||||
.. [#get-debug-build] On Unix and similar platforms, a debugging
|
||||
python and associated libraries are built by adding
|
||||
``--with-pydebug`` when configuring the Python build. On
|
||||
Windows, the debugging version of Python is generated by
|
||||
the "Win32 Debug" target of the Visual Studio project in the
|
||||
PCBuild subdirectory of a full Python source code distribution.
|
||||
You may also find
|
||||
@@ -147,7 +147,9 @@
|
||||
|
||||
<dt><a href="v2/faq.html">Frequently Asked Questions (FAQs)</a></dt>
|
||||
|
||||
<dt><a href="../pyste/index.html">Pyste (Boost.Python code generator)</a></dt>
|
||||
<dt><a href="http://www.language-binding.net/pyplusplus/pyplusplus.html">Py++ Boost.Python code generator</a></dt>
|
||||
|
||||
<dt><a href="../pyste/index.html">Pyste Boost.Python code generator (no longer maintained)</a></dt>
|
||||
|
||||
<dt><a href="internals.html">Internals Documentation</a></dt>
|
||||
|
||||
|
||||
Binary file not shown.
@@ -1,36 +0,0 @@
|
||||
# Copyright David Abrahams 2006. Distributed under the Boost
|
||||
# Software License, Version 1.0. (See accompanying
|
||||
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
project : requirements <library>/boost/python//boost_python ;
|
||||
|
||||
python-extension getting_started1 : getting_started1.cpp ;
|
||||
|
||||
bpl-test test1
|
||||
: # Python test driver
|
||||
test_getting_started1.py
|
||||
# extension modules to use
|
||||
getting_started1 ;
|
||||
|
||||
|
||||
python-extension getting_started2 : getting_started2.cpp ;
|
||||
|
||||
bpl-test test2
|
||||
: # Python test driver
|
||||
test_getting_started2.py
|
||||
# extension modules to use
|
||||
getting_started2 ;
|
||||
|
||||
python-extension std_pair : std_pair.cpp ;
|
||||
|
||||
bpl-test test3
|
||||
: # Python test driver
|
||||
test_std_pair.py
|
||||
# extension modules to use
|
||||
std_pair_ext ;
|
||||
|
||||
# Don't run tests by default
|
||||
explicit test1 test2 test3 ;
|
||||
alias test : test1 test2 test3 ;
|
||||
explicit test ;
|
||||
|
||||
@@ -1,36 +0,0 @@
|
||||
# Copyright David Abrahams 2003. See accompanying LICENSE for terms
|
||||
# and conditions of use.
|
||||
|
||||
# If you move this example from its place in the Boost tree, edit this
|
||||
# path to point at the root directory of your Boost installation (the
|
||||
# one containing a subdirectory called "boost/" and a sub-subdirectory
|
||||
# "boost/python/" full of .hpp files). Absolute paths work, too.
|
||||
#
|
||||
path-global BOOST_ROOT : ../../.. ;
|
||||
|
||||
# Boost.Python configuration variables, as described in
|
||||
# http://www.boost.org/libs/python/doc/building.html#configuration.
|
||||
# Usually you don't need to set these; the defaults will work. If you
|
||||
# do set them, try to change as few of them as possible, starting with
|
||||
# the first ones.
|
||||
|
||||
# PYTHON_VERSION = <the two-part Major.Minor version number, e.g. 2.2> ;
|
||||
# PYTHON_ROOT = <root directory of your Python installation, e.g. /usr> ;
|
||||
# PYTHON_INCLUDES = <path to Python #include directories> ;
|
||||
# PYTHON_LIB_PATH = <path to Python library object> ;
|
||||
|
||||
# You may need to configure your compiler toolset, especially if you
|
||||
# want to build with a compiler that is not the "system default" or if
|
||||
# it is installed in a nonstandard place; see
|
||||
# http://www.boost.org/more/getting_started.html#Configuring for
|
||||
# details.
|
||||
|
||||
# Makes a project id for boost so that other Boost.Build projects can
|
||||
# refer to it by name.
|
||||
#
|
||||
project boost : $(BOOST_ROOT) ;
|
||||
|
||||
# Change this setting to have all your built products placed under a
|
||||
# single directory:
|
||||
#
|
||||
# ALL_LOCATE_TARGET = <root directory for all built products>
|
||||
Binary file not shown.
33
example/quickstart/Jamroot
Executable file
33
example/quickstart/Jamroot
Executable file
@@ -0,0 +1,33 @@
|
||||
# Copyright David Abrahams 2006. Distributed under the Boost
|
||||
# Software License, Version 1.0. (See accompanying
|
||||
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
# Specify the path to the Boost project. If you move this project,
|
||||
# adjust the path to refer to the Boost root directory.
|
||||
use-project boost
|
||||
: ../../../.. ;
|
||||
|
||||
# Set up the project-wide requirements that everything uses the
|
||||
# boost_python library defined in the project whose global ID is
|
||||
# /boost/python.
|
||||
project
|
||||
: requirements <library>/boost/python//boost_python ;
|
||||
|
||||
# Declare a Python extension called hello.
|
||||
python-extension extending : extending.cpp ;
|
||||
|
||||
# Declare an executable called embedding that embeds Python
|
||||
exe embedding : embedding.cpp /python//python ;
|
||||
|
||||
import testing ;
|
||||
|
||||
# Declare a test of the extension module
|
||||
testing.make-test run-pyd : extending test_extending.py : : test_ext ;
|
||||
|
||||
# Declare a test of the embedding application
|
||||
testing.run embedding
|
||||
: # any ordinary arguments
|
||||
: script.py # any arguments that should be treated as relative paths
|
||||
: # requirements
|
||||
: test_embed ; # name of test
|
||||
|
||||
7
example/quickstart/boost-build.jam
Normal file
7
example/quickstart/boost-build.jam
Normal file
@@ -0,0 +1,7 @@
|
||||
# Copyright David Abrahams 2006. Distributed under the Boost
|
||||
# Software License, Version 1.0. (See accompanying
|
||||
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
# Edit this path to point at the tools/build/v2 subdirectory of your
|
||||
# Boost installation. Absolute paths work, too.
|
||||
boost-build ../../../../tools/build/v2 ;
|
||||
154
example/quickstart/embedding.cpp
Normal file
154
example/quickstart/embedding.cpp
Normal file
@@ -0,0 +1,154 @@
|
||||
// Copyright Stefan Seefeld 2005.
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
#include <boost/python.hpp>
|
||||
|
||||
#include <boost/detail/lightweight_test.hpp>
|
||||
#include <iostream>
|
||||
|
||||
namespace python = boost::python;
|
||||
|
||||
// An abstract base class
|
||||
class Base : public boost::noncopyable
|
||||
{
|
||||
public:
|
||||
virtual ~Base() {};
|
||||
virtual std::string hello() = 0;
|
||||
};
|
||||
|
||||
// C++ derived class
|
||||
class CppDerived : public Base
|
||||
{
|
||||
public:
|
||||
virtual ~CppDerived() {}
|
||||
virtual std::string hello() { return "Hello from C++!";}
|
||||
};
|
||||
|
||||
// Familiar Boost.Python wrapper class for Base
|
||||
struct BaseWrap : Base, python::wrapper<Base>
|
||||
{
|
||||
virtual std::string hello()
|
||||
{
|
||||
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
|
||||
// workaround for VC++ 6.x or 7.0, see
|
||||
// http://boost.org/libs/python/doc/tutorial/doc/html/python/exposing.html#python.class_virtual_functions
|
||||
return python::call<std::string>(this->get_override("hello").ptr());
|
||||
#else
|
||||
return this->get_override("hello")();
|
||||
#endif
|
||||
}
|
||||
};
|
||||
|
||||
// Pack the Base class wrapper into a module
|
||||
BOOST_PYTHON_MODULE(embedded_hello)
|
||||
{
|
||||
python::class_<BaseWrap, boost::noncopyable> base("Base");
|
||||
}
|
||||
|
||||
|
||||
void exec_test()
|
||||
{
|
||||
std::cout << "registering extension module embedded_hello..." << std::endl;
|
||||
|
||||
// Register the module with the interpreter
|
||||
if (PyImport_AppendInittab("embedded_hello", initembedded_hello) == -1)
|
||||
throw std::runtime_error("Failed to add embedded_hello to the interpreter's "
|
||||
"builtin modules");
|
||||
|
||||
std::cout << "defining Python class derived from Base..." << std::endl;
|
||||
|
||||
// Retrieve the main module
|
||||
python::object main = python::import("__main__");
|
||||
|
||||
// Retrieve the main module's namespace
|
||||
python::object global(main.attr("__dict__"));
|
||||
|
||||
// Define the derived class in Python.
|
||||
python::object result = python::exec(
|
||||
"from embedded_hello import * \n"
|
||||
"class PythonDerived(Base): \n"
|
||||
" def hello(self): \n"
|
||||
" return 'Hello from Python!' \n",
|
||||
global, global);
|
||||
|
||||
python::object PythonDerived = global["PythonDerived"];
|
||||
|
||||
// Creating and using instances of the C++ class is as easy as always.
|
||||
CppDerived cpp;
|
||||
BOOST_TEST(cpp.hello() == "Hello from C++!");
|
||||
|
||||
std::cout << "testing derived class from C++..." << std::endl;
|
||||
|
||||
// But now creating and using instances of the Python class is almost
|
||||
// as easy!
|
||||
python::object py_base = PythonDerived();
|
||||
Base& py = python::extract<Base&>(py_base) BOOST_EXTRACT_WORKAROUND;
|
||||
|
||||
// Make sure the right 'hello' method is called.
|
||||
BOOST_TEST(py.hello() == "Hello from Python!");
|
||||
|
||||
std::cout << "success!" << std::endl;
|
||||
}
|
||||
|
||||
void exec_file_test(std::string const &script)
|
||||
{
|
||||
std::cout << "running file " << script << "..." << std::endl;
|
||||
|
||||
// Run a python script in an empty environment.
|
||||
python::dict global;
|
||||
python::object result = python::exec_file(script.c_str(), global, global);
|
||||
|
||||
// Extract an object the script stored in the global dictionary.
|
||||
BOOST_TEST(python::extract<int>(global["number"]) == 42);
|
||||
|
||||
std::cout << "success!" << std::endl;
|
||||
}
|
||||
|
||||
void exec_test_error()
|
||||
{
|
||||
std::cout << "intentionally causing a python exception..." << std::endl;
|
||||
|
||||
// Execute a statement that raises a python exception.
|
||||
python::dict global;
|
||||
python::object result = python::exec("print unknown \n", global, global);
|
||||
|
||||
std::cout << "Oops! This statement should be skipped due to an exception" << std::endl;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
BOOST_TEST(argc == 2);
|
||||
std::string script = argv[1];
|
||||
// Initialize the interpreter
|
||||
Py_Initialize();
|
||||
|
||||
bool error_expected = false;
|
||||
|
||||
if (
|
||||
python::handle_exception(exec_test)
|
||||
|| python::handle_exception(boost::bind(exec_file_test, script))
|
||||
|| (
|
||||
(error_expected = true)
|
||||
&& python::handle_exception(exec_test_error)
|
||||
)
|
||||
|
||||
)
|
||||
{
|
||||
if (PyErr_Occurred())
|
||||
{
|
||||
if (!error_expected)
|
||||
BOOST_ERROR("Python Error detected");
|
||||
PyErr_Print();
|
||||
}
|
||||
else
|
||||
{
|
||||
BOOST_ERROR("A C++ exception was thrown for which "
|
||||
"there was no exception translator registered.");
|
||||
}
|
||||
}
|
||||
|
||||
// Boost.Python doesn't support Py_Finalize yet, so don't call it!
|
||||
return boost::report_errors();
|
||||
}
|
||||
41
example/quickstart/extending.cpp
Normal file
41
example/quickstart/extending.cpp
Normal file
@@ -0,0 +1,41 @@
|
||||
// Copyright Ralf W. Grosse-Kunstleve 2002-2004. Distributed under the Boost
|
||||
// Software License, Version 1.0. (See accompanying
|
||||
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
#include <boost/python/class.hpp>
|
||||
#include <boost/python/module.hpp>
|
||||
#include <boost/python/def.hpp>
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
|
||||
namespace { // Avoid cluttering the global namespace.
|
||||
|
||||
// A friendly class.
|
||||
class hello
|
||||
{
|
||||
public:
|
||||
hello(const std::string& country) { this->country = country; }
|
||||
std::string greet() const { return "Hello from " + country; }
|
||||
private:
|
||||
std::string country;
|
||||
};
|
||||
|
||||
// A function taking a hello object as an argument.
|
||||
std::string invite(const hello& w) {
|
||||
return w.greet() + "! Please come soon!";
|
||||
}
|
||||
}
|
||||
|
||||
BOOST_PYTHON_MODULE(extending)
|
||||
{
|
||||
using namespace boost::python;
|
||||
class_<hello>("hello", init<std::string>())
|
||||
// Add a regular member function.
|
||||
.def("greet", &hello::greet)
|
||||
// Add invite() as a member of hello!
|
||||
.def("invite", invite)
|
||||
;
|
||||
|
||||
// Also add invite() as a regular function to the module.
|
||||
def("invite", invite);
|
||||
}
|
||||
6
example/quickstart/script.py
Normal file
6
example/quickstart/script.py
Normal file
@@ -0,0 +1,6 @@
|
||||
# Copyright Stefan Seefeld 2006. Distributed under the Boost
|
||||
# Software License, Version 1.0. (See accompanying
|
||||
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
print 'Hello World !'
|
||||
number = 42
|
||||
36
example/quickstart/test_extending.py
Normal file
36
example/quickstart/test_extending.py
Normal file
@@ -0,0 +1,36 @@
|
||||
# Copyright Ralf W. Grosse-Kunstleve 2006. Distributed under the Boost
|
||||
# Software License, Version 1.0. (See accompanying
|
||||
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
# Using the doctest module here to ensure that the results are as expected.
|
||||
r'''>>> from extending import *
|
||||
>>> hi = hello('California')
|
||||
>>> hi.greet()
|
||||
'Hello from California'
|
||||
>>> invite(hi)
|
||||
'Hello from California! Please come soon!'
|
||||
>>> hi.invite()
|
||||
'Hello from California! Please come soon!'
|
||||
|
||||
>>> class wordy(hello):
|
||||
... def greet(self):
|
||||
... return hello.greet(self) + ', where the weather is fine'
|
||||
...
|
||||
>>> hi2 = wordy('Florida')
|
||||
>>> hi2.greet()
|
||||
'Hello from Florida, where the weather is fine'
|
||||
>>> invite(hi2)
|
||||
'Hello from Florida! Please come soon!'
|
||||
'''
|
||||
|
||||
def run(args = None):
|
||||
if args is not None:
|
||||
import sys
|
||||
sys.argv = args
|
||||
import doctest, test_extending
|
||||
return doctest.testmod(test_extending, verbose=True)
|
||||
|
||||
if __name__ == '__main__':
|
||||
import sys
|
||||
sys.exit(run()[0])
|
||||
|
||||
@@ -51,6 +51,7 @@
|
||||
# if defined(_SGI_COMPILER_VERSION) && _SGI_COMPILER_VERSION >= 740
|
||||
# undef _POSIX_C_SOURCE
|
||||
# undef _XOPEN_SOURCE
|
||||
# undef HAVE_STDINT_H // undo Python 2.5.1 define
|
||||
# endif
|
||||
|
||||
//
|
||||
|
||||
Reference in New Issue
Block a user