do not import `petsc4py.PETSc` until we really need it.#256

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JHopeCollins merged 3 commits intomasterfrom

JHopeCollins/delay-petsc-import

Apr 21, 2026

Commits on Apr 16, 2026

do not import petsc until we really need it
JHopeCollins
committed

Commits on Apr 17, 2026

import petsctools and PETSc inside each function in TAO solver
JHopeCollins
committed
bump minimum petsctools version for the OptionsManager free functions
JHopeCollins
committed