In migrating from python 1.5.2 and Numeric 13 to python2.1.1 with Numeric-20.1.0 I have encountered a rather pernicious problem. I had previously been using f2py 1.232 to generate modules for the BLAS and a self-consistent subset of LAPACK. Importing the thus created blas and then lapack modules made their FORTRAN routines available to the FORTRAN code that I had written. Everything worked well. However, after I compiled python2.1.1 and Numeric-20.1.0 importing the blas and lapack modules no longer provides access to their routines. Moreover, I can't even import the lapack module because it requires routines from the blas module (that it can no longer see). I get this behavior on both RedHat 7.1 and 6.1 (e.g. with and without gcc 2.96). I verified that python2.2a behaves as 2.1.1 in this regard as well. I tried linking generating blas and lapack libraries and linking them during creation of the shared libraries but that only worked marginally. I am still geting unresolved symbol errors. Has anyone else seen this problem/difference? -Todd