On Mar 18, 2011, at 9:36 PM, Tim Lahey wrote: > Hi, > > I've been thinking about applying for GSoC and working on a Cython core. I'm > assuming that it would be an optional thing? So, there would be two cores, an > optimized one that's done in Cython and a pure Python one for when Cython > isn't available. > > Is the idea to update and clean up sympyx and properly integrate it into > sympy?
Well, the hope is that we can use things like @cythonized decorators in the core, and make it just work either way (either it uses pure Python, or cython if the cython has been made). This is how the cython in the polys works right now. We will have to look at it to see if this will work for the core. Anyway, it would definitely be optional no matter how it is done, because we want people to be able to use SymPy using pure Python as the only dependency. Also, it was my understanding that the core needs a lot of cleanup before it can be properly cythonized. In particular, the old assumptions have to be completely removed and replaced with the new ones. Others know more about the state of the core and could probably answer your questions better, though. > > On a development note, is there a good way to have a separate python and > packages (e.g., a sympy fork and cython) so I don't mess up my system python? > I'm working on OS X, but I could install a Linux VM in Virtualbox (if so, > which Linux?). > If you are working on just SymPy, you can just work straight from the git repository. There is no need to install it. If you want to create a virtual environment with Python, you can use virtualenv. Maybe someone else here can explain how to use it better than I can (I am still new to it), but I think you basically type "virtualenv directory" and then install things using the virtual python installed in that directory (I think I might be missing a step or two here, so look at the docs before trying). Also, an alternative to the system Python on Mac OS X is to use fink. That is what I do. Everything is installed in /sw/, and if you screw up the installation, you can completely trash /sw/ and start again if you want (it is completely independent of the system stuff). Aaron Meurer > Cheers, > > Tim. > > --- > Tim Lahey > PhD Candidate, Systems Design Engineering > University of Waterloo > http://about.me/tjlahey > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To post to this group, send email to sympy@googlegroups.com. > To unsubscribe from this group, send email to > sympy+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. > -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
