[Python-modules-team] Bug#778635: python-scipy bundles library for L-BFGS-B minimization

[Gard Spreemann]

Source: python-scipy
Severity: wishlist
Tags: upstream

Dear Maintainer,

python-scipy bundles Fortran code for L-BFGS-B minimization in
scipy/optimize/lbfgsb/*.f. The code comes from outside the SciPy
project [1], and I believe it is useful as a standalone library and
that the python-scipy package should remove the included copy.

Additionally, the included copy of lbfgsb bundles its own copy of
LINPACK, which as far as I understand is deprecated in favor of
LAPACK. Following this bugreport I propose a patch for lbfgsb that
makes it use the system LAPACK instead.

[1] http://users.iems.northwestern.edu/~nocedal/lbfgsb.html