At 08:51 AM 12/22/2008 +0000, devel at jonasmelian.com wrote: >Then it's a Setuptools issuse because with the next options the system >already has Pyrex: > > setup_requires='Pyrex', > install_requires='Pyrex', That's a good point; I suspect the problem is that setuptools is checking for Pyrex's presence before it's on sys.path.