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Can't run bjam to compile boost python tutorial

Tags:

c++

python

boost

I am trying to follow this tutorial on wrapping C++ code for python for Windows.I installed python.Downloaded the latest version of boost(1_55).First I ran bootstrap.bat to build bjam.exe.Next, I configured boost_1_55_0\tools\build\v2\user-config.jam to use msvc10 compiler and added the path to python installation. Now,based on the tutorial :

Now we are ready... Be sure to cd to libs/python/example/tutorial where the tutorial "hello.cpp" and the "Jamroot" is situated.

Finally:

bjam

Trying to run bjam in that directory gives me : "bjam is not recognized as internal or external command" error.What have I missed here? Should user-config.jam reside in another location?Or bjam added to system path?

UPDATE:

Ok.Thanks to @john I had to add bjam to system path.But now,running it,hello_ext.lib is created in \boost_1_55_0\libs\python\example\tutorial\bin\msvc-11.0\debug but not DLL.Based on the tutorial I should get DLL file for the extension.Now, I am not sure how python links with extension.But if I assume it does like C++ then it should have linked with hello_ext.lib.But if run :

python hello.py

which contains imported method from the extension ,the python runtime crashes.Isn't there a comprehensive tutorial on this workflow?Boost doc sucks completely on this.

like image 502
Michael IV Avatar asked Oct 02 '22 09:10

Michael IV


1 Answers

This worked for me:

1.) unzip boost_1_55_0.zip

2.) Prepare to use the Boost Library Binaries

Go to the boost_1_55_0 root directory and open a command prompt and type following commands:

Bootstrap

3.) Find user-config.jam:

Type following in the command prompt:

ECHO %HOMEDRIVE%%HOMEPATH%

4.) If the user-config.jam is in your homedrive directory please change it there as followed:

ATTENTION:

The .jam language rates a “whitespace” as a separation of arguments!

# -------------------
# MSVC configuration.
# -------------------

# Configure msvc (default version, searched for in standard locations and PATH).
# using msvc ;

# Configure specific msvc version (searched for in standard locations and PATH).
using msvc : 10.0 : C:\\app\\tools\\MSVisualStudio2010\\VC\\bin\\cl.exe ;

….

# ---------------------
# Python configuration.
# ---------------------

# Configure specific Python version.
# using python : 3.1 : /usr/bin/python3 : /usr/include/python3.1 : /usr/lib ;

using python 
    : 2.5                   # Version
    : C:\\app\\tools\\Python25\\python.exe      # Python Path
    : C:\\app\\tools\\Python25\\include         # include path
    : C:\\app\\tools\\Python25\\libs            # lib path(s)
    : <define>BOOST_ALL_NO_LIB=1
    ;

5.) Build the Libraries AFTER configuration!!

Go to the boost_1_55_0 root directory and open a command prompt and type following commands:

.\b2

6.) Copy the user-config.jam to \boost_1_55_0\libs\python\example\tutorial 7.) Go further to \boost_1_55_0\stage\lib\

Rename libboost_python-vc100-mt-gd-1_55.lib to boost_python-vc100-mt-gd-1_55.lib and copy it to

\boost_1_55_0\libs\python\example\tutorial

8.) Now you should have all of these files in the \boost_1_55_0\libs\python\example\tutorial directory

hello.cpp
hello.py
user-config.jam
Jamroot
boost_python-vc100-mt-gd-1_55.lib
bjam.exe

9.) Open a command prompt in \boost_1_55_0\libs\python\example\tutorial

And type following command:

bjam

10.) After successful building..

You should have this file in the directory:

hello_ext.dll

rename this file to:

hello_ext.pyd
like image 95
Flo Avatar answered Oct 07 '22 18:10

Flo