[Pyrex] New Distutils implementation for Pyrex.

[Stefan Behnel]

Billy G. Allie wrote:
> I am re-implementing my PostgreSQL interface (pyPgSQL) using Pyrex to
> implement an extension for the libpq C-API.  When using the supplied
> build_ext, I notices that I had to have the .pxd files in the same
> directory as the source .pyx file.  Also, the generated c source file
> was placed in the same directory as the Pyrex source.  I also could not
> specify Pyrex options to create a listing file, etc.  I wanted to have
> the .pxd files in an separate include directory and I also did not want
> to clean up the generated files from the Pyrex source directory.  To
> correct these (minor) annoyances, I've implesmentd a new version of
> buld_ext.py and created a version of core.py and extension.py.

Hi,

is this an independent implementation or is it based on the old one? If the
latter, could you provide a patch against Cython and submit it at the Cython
bug tracker? If it's new, could you still provide a single-file patch that
includes the new files? We use Mercurial as version control system (meta data
is in the source distribution), so an "hg export" would be greatly appreciated.

https://bugs.launchpad.net/cython

http://www.cython.org


> This implementation of Pyrex.Distutils will:
> 
>    1. put the generated files (*.c, *.h, *.pxi) into the
>       [build_temp]/pyrex directory (unless the --inplace option is used).

This might touch the generation of the public C API in Cython. It generates a
public .h file that should be part of the distribution. (Although Cython does
not currently include it automatically either...)


>    2. add the following Pyrex specific command-line options:
>           * pyrex-include-dirs: a list of directories that Pyrex will
>             search for include files (the -I option of pyrexc)

Don't distutils support something like this already?


>           * pyrex-create-listing: tells Pyrex to place error messages in
>             a listing (.lis) file.
> I am also supplying a patch to Pyrex's Main.py that will place the
> listing file in the same directory as the output file, instead of in the
> same directory as the source file.

What is this error listing used for?

I'll look through your code for now to see if it matches with what Cython
currently does.

Thanks for the contribution.

Stefan