Python interface for DOLFIN (with 64-bit PETSc integers)

 DOLFIN is the Python and C++ interface of the FEniCS project for the
 automated solution of differential equations, providing a consistent
 PSE (Problem Solving Environment) for solving ordinary and partial
 differential equations. Key features include a simple, consistent and
 intuitive object-oriented API; automatic and efficient evaluation of
 variational forms; automatic and efficient assembly of linear
 systems; and support for general families of finite elements.
 .
 This package contains the Python interface for DOLFIN (Python 3)
 build against 64-bit PETSc (64-bit indexing)
 .
 This is the legacy version of DOLFIN, you may want to install the
 next-generation python3-dolfinx (DOLFIN-X) instead.