On Wednesday, March 21, 2012 8:06:47 AM UTC-7, Ralph Heinkel wrote: > Hi, > > when processing our mass spectrometry data we are running against the > 2GB memory limit on our 32 bit machines. So we are planning to move to > 64bit. Downloading and installing the 64bit version of Python for > Windows is trivial, but how do we compile our own C extension? Visual C > ++ 2008 express comes for free, but only compiles for 32 bit. > > What has been used to compile the downloadable Python Win64 bit > version? Visual Studio professional? > The problem with the professional edition is that it is hard to obtain > and it is sort of out-of-date - nowadays everyone uses Visual Studio > 2010 (or even 2011 coming soon). So if Visual Studio 2008 professional > is required for compiling 64bit modules, we would have to spend $1200 > for a license which is actually rather out of date. > > Any hints or suggestions are very welcome. > > Thanks, > > Ralph
See "Compiling 64-bit extension modules on Windows" at <http://wiki.cython.org/64BitCythonExtensionsOnWindows>. It applies to non-Cython extensions as well. MinGW-w64 also works, but you'll have to generate and use libpythonXX.a and libmsvcr90.a link libraries. Christoph -- http://mail.python.org/mailman/listinfo/python-list
