[C++-sig] ImportError...'No such file' etc. when importing hello_ext from tutorial

[Adrien Saladin]

> Now it works. Well, yes, there were 3 issues. First, I had skipped the "make install" part in "getting started with boost", i.e. I didn't have any libboost* files (of which I know explicitly). Second, LD_LIBRARY_PATH was not set and, third, libboost_python-gcc41-1_37.so.1.37.0 didn't exist after making. I just copied "libboost_python-gcc41-mt-1_37.so.1.37.0" to "libboost_python-gcc41-1_37.so.1.37.0" in $LD_LIBRARY_PATH/.
>
> Thank you very much for your quick response.


You're welcome.
I remember that you mentioned bjam, and if you like it then continue
with it, but don't trust the documentation website: many other tools
can compile and link with boost.python, not only bjam. I'm using SCons
but make and cmake works as well.

I'm telling that because I really dislike bjam syntax and when I began
with boost.python I thought that boost.python was not for me just
because of this building tool.

Also if you begin with boost.python you must have a look at pyplusplus
(or Py++), it's a very convenient tool that parses your C++ headers
and generates boost.python code almost automatically. I'm using it for
two years now and I'm really happy with it.

There is also one problem with boost.python in general: library tends
to become bigger and bigger with the number of functions and classes
that you interface. Compile-time may also become an issue at some
point. My library (~7000 lines of C++, 15 classes) now takes 50sec on
a 8 cores 3Ghz computer. About 45sec are for the boost.python
bindings...
I'm now considering switching to pybindgen, but it's still a very new
project that lacks some features of boost.python.

Just curious, for what type of project do you wish to learn boost.python ?

Best,
Adrien