Hmm, seems you're right. Though that seems to be some fallback thing which is used if the real thing isn't found during the build. At least on Ubuntu 16.04 the

Hmm, seems you're right. Though that seems to be some fallback thing which is used if the real thing isn't found during the build. At least on Ubuntu 16.04 the lapack_lite module links against the real (Fortran) lapack library: % ldd /usr/lib/python3/dist-packages/numpy/linalg/lapack_lite.cpython-35m-x86_64-linux-gnu.so|grep -E 'lapack|fortran' liblapack.so.3 => /usr/lib/liblapack.so.3 (0x00007fb619ce7000) libgfortran.so.3 => /usr/lib/x86_64-linux-gnu/libgfortran.so.3 (0x00007f5ae0911000)